Dr. Stella Harrow drove too fast for the conditions, racing the snowstorm as it erased the narrow road around her. 

Snow hammered the windshield in heavy wet bursts, whitening the world beyond the SUV’s headlights. Spruce trunks hemmed her in on either side of the road, great dark guardians. The grey clouds and snow flurries drained the color out of the landscape, nearly monochrome.

It was like being back in the hospitals and laboratories where Stella had spent her career defeating disease, while one had been metastasizing inside her. 

The tires slipped once in the deepening accumulation and Stella corrected automatically, one hand steady on the wheel, accelerating as the snowfall thickened.

She needed to reach the cabin before the road disappeared entirely.  It was the last move she could make.

 She clenched her jaw as another pulse of pressure built behind her eyes.

Not pain…  Pressure.  That distinction mattered.

Six months ago she would have blamed stress, caffeine, too much screen light, not enough sleep. When she finally conceded to an MRI, the thing inside her had already rooted deep into the temporal lobe.

In a beige room, door closed, her colleague spoke softly, seeking to cushion the diagnosis with compassion and reassurance.

Stella extracted the data.

Inoperable.

Terminal.

Six to nine months.

She pressed two fingers beneath her wool knit cap, rubbed her stubbled scalp. Just above her right brow. The plastic hospital band shifted against the cuff of her jacket.

She had meant to cut that off.  She just hadn’t, yet.  Not because what it said— Stella Harrow. DOB: 8/12/83 Patient.  Because of what it defined.  Oncology offices. Treatment Centers. Emergency rooms.  Waiting rooms.

Hospice rooms.

A flash of memory surfaced.

Her father, in a hospital bed.  Eyes closed.  His big frame wasted to a scarecrow’s.  Skin translucent beneath the cold fluorescents.

The oxygen machine breathing for him in soft mechanical sighs.

His eyes opening.  Looking around.

Finding hers. Locking.

“I don’t want to disappear.”

The last coherent words he spoke, his voice between a rasp and a cough.

At the time she thought he meant death.

Now she believed something else.

Coming around a curve in the road Stella had to step hard on the brake.

A herd of reindeer had emerged from the trees.

The SUV fishtailed slightly before correcting itself.

The big animals, crowned with their velvety antlers, moved casually, unaware or unconcerned with the vehicle’s presence, snow-blurred shapes in the headlights.

Stella leaned toward the steering wheel, adjusting her wool knit cap, and watched them.

She did not believe in signs and wonders.

But she smiled grimly at the happenstance of encountering the source of the therapy that would save her life.

Rapid cellular regeneration. Living bone.  Grown and shed every season. Unique in mammalian science. 

Nature had already solved problems humanity was only beginning to grasp.

The reindeer vanished into the trees.

Stella drove on.

The cabin appeared twenty minutes later through the snowfall, crouched beneath layers of ice and darkness. 

Dad loved the place.  He’d built it to retreat from the world once in a while.  First, just for himself.  Then, with her mother, her brothers, and her.  

She turned off the ignition and sat listening to the engine tick and the snow hiss.

For a moment she remained behind the wheel, surveying the structure.  She had not been here in years, and never in winter.  No lights. No movement. Just the angular silhouette of the roofline against the white forest.

She opened the door and stepped into the biting cold, eyes watering and cheeks stinging.

By the time she hauled her bags and the refrigeration cases onto the porch her pulse was hammering. Not from exertion.  From the pressure again. A deep expanding fullness inside her skull.

She supported herself against the railing until it passed.

The cabin door opened smoothly.  The whole cabin was constructed with an engineer’s devotion to structure.   Built by a man who believed most problems could be solved with the correct measure and the proper tools.

She had inherited that, along with her blue eyes and golden blond tresses. Back when she had tresses.

Inside, the cabin smelled like dust, pine resin, cold still air, and old fabric.

Her flashlight swept across the mounted caribou head above the fireplace.

Stella dropped her bags beside the dining table and moved immediately to the generator controls. Fuel on. Control panel.  Start sequence. Ignition.

The generator started on the second push of the button.

A few moments later warm yellow light pushed back the darkness.

She worked methodically after that.  Procedurally.

She transformed the far end of the dining table into a makeshift treatment center. Alcohol wipes. Sterile tubing. Warming bath.  Several five-gallon containers of sterilized water, for both the equipment and drinking.  Sealed infusion bags resting in refrigerated foam containers.  Binders and files organized in piles.  Red plastic kerosene containers in a neat row along the wall.

She paused when she saw her mandatory medical leave form on top of a pile.  She buried it under another stack of folders.

Two days ago MyCel Biotech had revoked her lab access and locked her out of the server network.

CSO Langston Reichter himself had given the order.

They’d wanted to stop her.  Before she did something irreparable.

Stella picked up one of the infusion bags from its chilled nest and held it under the light. The clear fluid shown with a faint metallic shimmer.  Beautiful.

MCR – E, the label read in fat black letters.

She placed the bag into the warming bath, checked the temperature monitor.

37 degrees Celsius.  Perfect.

Only then did she remove her coat and knit cap.  Not because it was still cold in the cabin.  Her previous infusions made her tolerable of the cold.  And not because of her hair. Once she’d abandoned radiation and chemotherapy, it had returned—faster than it should have. Evidence her protocol was working. Taking off her cap meant taking on the cancer.

She poured two fingers of vodka into a glass and lowered herself carefully into the chair beside the IV pole.

She stared around the cabin at the relics of her life with family.  The side table by the chair held an album of vacation photos.  She picked it up and sat it in her lap.  Flipping the heavy pages, she looked at the washed out photos of her scrawny-year-old self.  She found a photo showing her and her brothers at craft time.  Stella with a headband from which sprouted reindeer antlers cut from brown construction paper.

The pressure in her skull returned.

Worse now.

Her father used to get that same pain near the end.

That expression of frightened vacancy.

She saw it sitting beside his hospice bed. Fluids dripped steadily from translucent bags. The infusion pump sighed in a soft rhythm. The oxygen line hissed. Even when his eyes were open, they stared at nothing.  Waiting.

For life to surrender.

No.

Not surrender.

Disappear.

That was it.

His cancer hollowed him out before it killed him.

Stella took a hard swallow of vodka.

That would not happen to her.

She set down the glass and began preparing the infusion.  Every movement precise, despite the tremor in her left hand.

She fitted the translucent line to the warmed MCR – E serum, handing on the IV pole.

Stella rolled back her sleeve and palpated the implanted access port beneath the skin of her forearm and inserted the line.

“First infusion,” she whispered to the empty cabin.

The pump blinked, a tiny, clinical beacon in the timbered quiet.

Stella watched her left hand quiver. She lifted her gaze to the darkened window pane, seeing her reflection in the glass as a dim, rippled nocturnal mirror.

She didn’t need it to see the small changes.

Her hair—regrown so quickly she’d kept her head covered so as to avoid questions. The tremors she got in her limbs.  Like something beneath the surface resculpting the architecture.  Her skin shedding her forty-three years.  Now she could be mistaken for twenty-nine.  Her neck was tight, her exposed arms looked firm and strong.

I was right to stop the cancer treatments.  They were only hampering the infusions.  The protocol is working.

Just not on the tumor.  Not yet.

For a single, agonizing second, doubt breached her defenses. “You are rushing your trials,” Reichter’s voice echoed in his office, no longer an administrative warning, but a cold accusation of recklessness the day he’d ordered MyCel Biotech to lock her out. “You’re mutating your baseline biology. The vector mapping is unstable. Stella, it won’t just eat the tumor; it will rewrite the host.”

Could Reichter be right? She was rushing because she had no time.  What if, in her haste, she created something that could not be controlled?  

Stop the pump, right now.  Pack everything up and return to a world of established treatment. A clean, human surrender—while she was still human. Her infused genes could lie dormant while she laid in a lonely bed, infusing standardized drug cocktails, under the quiet, peaceful watch of nurses as her internal systems step down one by one.

But what if she was right?  If her protocol succeeded, it would change how all disease would be treated. She would prove the power of cross-species gene-splicing therapy.  She’d be hailed as the new Pasteur.

As she leaned back, the edge of the plastic hospital band caught the arm of the chair, tugging at her wrist.

Stella Harrow. DOB: 8/12/83 Patient.

The smell of stinging rubbing alcohol, the hum of the ventilator, filled her memory.  The stale scent of a body devoured from the inside. The absolute, humiliating stasis of her father’s final weeks.  Trapped in a cage of his own failing biology.  Disappearing from the world. Surrendering to the protocol of decay.

She stared at the wristband. A barcode for a carcass.

She clenched her left and into a fist, steading the tremors.

She reached across the armrest and opened the valve on the line.

The warmed MCR-E serum flowed down the translucent line, a bead of silver light chasing the dark curve of the tubing.

“Express,” she whispered to the shadows.

Stella awoke the next morning, refreshed and revived.  

She sat on the edge of the bed and rolled her shoulders.  She breathed in the cold air.  She sensed the dawn.  It was still dark outside, but that was the way of Arctic winters.

Her bare feet met the cold floor.  She got out of bed and spread the heavy duvet neatly. She walked to the mirror and shrugged off the oversized flannel shirt she’d worn to bed.  Standing naked, she looked at herself under the warm electric light.

Hair: longer.  It was growing nearly 4 centimeters a day now, she had noted.

Weight: Steady.  Maybe even putting a little bit back on?  She didn’t think she looked so wan today.

Eyes:

She stopped, tilting her head—curious.  Not alarmed.

The familiar ice blue of her irises seemed darker today.  A higher proportion of melanin.  And larger.  Her irises looked larger.  The edges pushed back the white of her scaleria more than seemed normal.

Stella raised her fingers to her face when her eyes flicked upward to her hairline in the reflection.  Two bright red patches on either side of her head, above her brows.  She touched the right one gently.  It was sore and painful.  Not like the deep stabbing pains she got inside her head.  This was topical.  Something under the skin.

A lesion?  A cyst?  Some kind of bone spur?

She dropped her hand and turned to get dressed.

Well, some side effects were to be expected, after all.

She checked all the equipment on the dining table, including the temperatures of the remaining serum bags.  Satisfied, she made some coffee and sat down to update her notes.  She always preferred to make her initial notes by hand.  Her laptop booted up unbearably slowly, the hard drive burdened with all the data she’d taken from the main servers.

The memory made her flinch.  Locked out of her labs.  Cut off from her research.  Riechter shuttering her protocol.

But Stella had stayed on the tip of discovery by being two steps ahead.  Not one step behind.

She’d built a run kit.  Before her symptoms worsened.  Before the meeting with Reichter.

Hard copies of files, downloaded encrypted data, back up hard drives, equipment, coolers, cash in multiple currencies.

Most importantly, bags of her experimental serums.

MCR – E, O, and S.

He thought he had contained her.

He’d only given her autonomy.

Stella looked down at her notes.  Her handwriting had never been letter perfect, but when had it gotten so sloppy?  She was going to have to transcribe these notes, she scolded herself.  Her voice recorder had been a disappointment.  When she played it back, her words were an unintelligible mumble.  She pressed record, spoke a few words, then played them back.

Perfect.

She dropped her pen on the table and stood up.  Taking her coffee she stepped out onto the porch in the steel gray twilight.  The spruces and pines sat darkly at the edge of the clearing in front of the cabin.  She ventured to the edge of the porch and looked up.  A curtain of aurora borealis snaked palely across the deep blue sky, shimmering like gossamer.

When she dropped her gaze, she noticed movement.

Shapes detached themselves from the shadows and moved in the clearing.  As she focused she saw it was a small herd of reindeer, scratching through the new snowfall to reach the lichen underneath.  Their great spreading antlers had looked to her like bare branches brush until they began moving.

As she stepped carefully onto the first step of the porch, she heard a crunch under her foot.  Looking down she saw she was still barefooted.  How had that escaped her notice?  It had to be minus 35 Celcius.  She stood on the porch in jeans and short sleeves, her breath steaming in thick clouds.  She barely noticed it.  She breathed deeply, feeling the frigid air warm in her lungs.

Cold weather adaptation.  Proof the protocols were working.

She turned to go inside.

A stabbing pain shot through her head, like a mortar had gone off inside her skull.  Her vision went black, then blinding white.  Shapes moved towards her.  The smell of antiseptic filled her senses.  Her ears rang with a beep, like an alarm inside her mind.  She slipped on the icy steps, grasping the porch and cradling her head with her other hand, gasping and crying out in pain.

She remained there for several minutes, the throbbing pain in her head receding in waves like the tides.  Her vision began to clear and she regained a sense of balance.  Slowly and cautiously she pulled herself back to her feet and staggered back to the door of the cabin.  She didn’t trust herself to bend down and recover the coffee cup she’d dropped.

Pausing, she looked back at the reindeer.  There were only the deep shadows of the trees, leafless branches coated with hoarfrost glistening in the pale light.  

Spooked by her sudden collapse, no doubt.

Stella touched the bumps on her scalp.  More swollen now, the flesh around them stretched and sensitive.  

She staggered back inside, shut the door and made her way to the bedroom.  When she was close enough to the bed, she collapsed.  She just managed to drag the duvet over her body before she blacked out.

The second infusion hurt more.

Stella watched the serum descend through the tubing while sleet rattled like pebbles against the cabin windows. The warmth that accompanied the first treatment was gone now. This time the fluid entered her veins like liquid static.

Her jaw clenched.  Her left arm jerked with tremors.

After four days of expression, it was time for the genes to optimize.  MCR – O was the pure fuel to MCR – E’s engine.  She would see results faster, now.

Four days had dragged with agonizing slowness.  After her episode on the porch, Stella had slept for nearly 20 hours.  Making up for all those sleepless nights in her lab, she thought.

When she awoke, she’d eaten ravenously, her metabolism demanding fuel.  She’d had to stop herself to enforce her rations. She drank a tremendous amount of water, which she had to render from snow, scooped up and put in a pot to slowly melt on the gas stovetop. She drank it as fast as it melted. Her throat burned with a dry, unquenchable heat, a primal signal that her cells were consuming fluid faster than she could replace it. The sterile water for the equipment she kept under the table, out of sight and temptation.

She noted this in her logbook, along with her other post-infusion procedures.  She still wrote her notes longhand.  Her left hand tremored too much to accurately type on the laptop.  She collected her samples of blood and tissue, prepping them as best she could in the circumstances.

She sat hunched over the dining table, the scratch of her pen against a paper logbook a primitive substitute for the secure cloud servers she’d been exiled from.

Conventional oncology attacked cancer with a hammer. Radiation and chemotherapy killed, hoping to cure. Her protocol sought to regenerate her cells faster than the tumor could infect them—inhibit its growth and strangle it.

Reindeer DNA possessed the most aggressive regenerative mechanisms known in mammals.

The regenerative pathways had already proven themselves. Her hair had returned. Her tolerance for cold had increased dramatically. Even the wasting seemed to have slowed. 

The problem was targeting.

Regeneration alone solved nothing. Healthy tissue recovered. The tumor did too.

Her breakthrough with this final MCR serum was the secondary vector: mycelium genes.

Fungi excelled at connection. Beneath every forest floor, microscopic networks linked distant organisms into a single communicating system. Stella had engineered those pathways to spread through the body the same way. The mycelial genes would identify the tumor’s unique chemical environment, then direct regenerative activity toward destruction first and repair second.

A targeted, beautiful counterattack.

So elegant she couldn’t believe no one else saw it.

As a lead researcher at MyCel Biotech, she would have her choice of the high-end, multi-million-dollar technology necessary to track her cellular expression. She’d map data with next-gen sequencers, flow cytometers, and confocal laser microscopes. A high-field MRI would have been nice.  But there was a limit to how much equipment could go missing.

Instead, she’d had to leave with a crude, consolidated field kit. And she’d raised suspicions just gathering that.

Suspicions that had led Riechter to shut her down and call her to his office.

She had marched in, furious.  He had met her with equal ardor.

He said “unauthorized” a lot.  “Unethical”, “irresponsible”, an “illegal” were mentioned.

She snorted at his hypocrisy.  Hadn’t they built this company—together— by skirting rules and running roughshod over protocols, getting from process to patent and product to market?

“Not-repeatable”, his language changed.  From scientist to CSO.  “Liability”, “exposure”, “appearances”.

He would not fire her.  Given her reputation and her ‘condition’, it would wreck the company’s image.  But she would not be allowed to conduct any more self trials. She would take mandatory medical leave.  Full salary.  Insurance.  Benefits.  The well wishes of a grateful MyCel Biotech.

Stella’s language was emotional.  “Fuck you, Langston.”  She spun on her heel to storm out.

A sudden, blinding pain.  The room tilted.  The carpet rushed up to her face.

She awoke in the ER, a band around her wrist.  Concerned faces pressing in around her.  Someone holding her left forearm.

“She’s already got an IV port implanted—”

“Probably for the chemo—”

She struggled up, fending off their assistance.  Finding her feet.  Demanding her clothes and belongings.  Discharging herself AMA.

If she ever went into the hospital, she’d never come out.

Like her father.

She sat in the chair and watched her custom cocktail flow into her veins and rewrite her genetics.

Outside, darkness pressed against the windows long before afternoon should have ended.

Stella picked up the digital recorder from the table.

“Second-stage infusion administered ninety-six hours after gene expression protocol.”

She referred to her logbook, but her vision was blurred just enough to make her writing illegible.  She continued from memory.

“Observed symptoms include episodic disorientation, cranial tenderness, enhanced sensory acuity, elevated body metabolism, increased olfactory responsiveness, and—”

She stopped.

The next words felt absurd even forming in her mind.

“—possible skeletal irregularities.”

She lowered the recorder.

The swellings on her scalp had grown larger every day. Two hard protrusions had formed. Symmetrical. Conical.

Not inflammation.

Not cysts.

Bone.

She set down the recorder and picked up the glass of vodka.  She looked at the mounted caribou.  She raised the glass, then took a swig.

The cabin vanished for half a second.

Fluorescent light flooded her vision.

White ceiling panels.

Blurred figures moving nearby.

Then the vision collapsed inward and she was back in the chair, breath fogging faintly in the cold cabin air.  The caribou staring out with its permanent black glass eyes.

She stood too quickly.

Pain exploded behind her eyes.

Stella caught herself against the dining table, papers sliding across the wood surface. A binder fell open beside her.  Images spilled free.

Her last MRI scans.

Her own brain, rendered in ghostly layers of black and white.

The tumor spread through the temporal lobe like roots digging into soil.

The thought frightened her enough that she slammed the binder shut.

“No,” she whispered.

The word sounded weak in the empty cabin.

Outside, something moved across the porch.

A soft scrape.

Then silence.

Stella turned toward the window.

Nothing there.  Only her ghostly reflection.

A beeping alarm made her jump.  The infusion pump had emptied the bag.  She turned off the alarm and disconnected the tubing from her arm.

Still gripping the edge of the table, she forced herself upright and crossed to the bedroom mirror.

The light flickered faintly as the generator coughed once.

Her reflection stared back at her with unfamiliar intensity.

Her blue irises had darkened every day.  They were practically brown now.  And they’d expanded, swallowing most of the whites of her eyes.

She leaned closer.

The skin around the protrusions on her nearly hairless scalp had whitened, stretched thin. Beneath the surface she could see branching pink shadows worming across her head like veins.

Or roots.

She saw her father’s hospice room.  Near the end.

Not his face.

His hands.

The way he used to stare at them with quiet confusion, flexing his fingers as though they belonged to someone else.

She remembered asking if he needed anything.

He had looked at her for a long time before answering.

“I can’t tell where it starts and my body ends.”

It.  The invader.

Stella backed away from the mirror abruptly.

No.

This was different.

Her father deteriorated.

She was changing.

Evolution always looked grotesque mid-process.

The next two days Stella slept, kept up her equipment maintenance, monitored the temp on MCR – S.  She rationed her food.  She found herself avoiding the bone broth and smoked fish.  She devoured the vegetables with relish.  The flavors of an apple exploded in her mouth with such sweetness she ate the whole thing, barely pausing to swallow.  She melted snow and gulped the water continuously.

She measured the changes.  Weight: gaining, based on how her limbs were filling out.  Bony subdermal protrusions:  increasing, might soon break the skin.  Eyes:

Her eyes.

They didn’t seem like hers anymore.  Dark.  Brown.  Large.

It wasn’t just what she saw looking at the mirror.  It was what she saw looking out of them.  A sense something else was looking out alongside her.

And her hair:  Longer, coarser, thicker than ever before.  Her fine flaxen strands had also darkened.  And hair was showing up in other places, too.  Her arms, legs, back and shoulders were sprouting a fine downy layer of soft pale hair.  Almost—

Almost fur-like.

She stood on the porch, short sleeves and barefoot, indifferent to the cold.  Watching slow falling flakes of snow catch in the fine hairs along her arms.  She noticed the fallen coffee cup she had not yet picked up.  She laughed.  It had been so long since Stella Harrow had felt like laughing she must not be used to it.  It came out like a high pitched braying.

Most of her notes remained legible today, though uneven. She forced herself to review the previous week’s observations.  Transcribing the digital recording was impossible.  It had recorded her voice, but all she could get was a mumbled whining mismatch of words she couldn’t understand.  She made a test recording.  It played back perfectly.

Outside, she heard the thump of snow falling from branches.

Her head snapped up, looking toward the window.

Not snow falling.

Steps crunching through the icy layer of snow.

Stella froze.

Something stood beyond the porch railing.  She rose and crept to the window.

A shape.

Tall.

Motionless.

A reindeer watched her from the edge of the clearing.

Its breath steamed softly in the low afternoon light.

Then another shape emerged behind it.

And another.

A small herd gathered soundlessly in the yard.

Watching the cabin.

Watching her.

Stella felt an unexpected surge of emotion so sudden it almost embarrassed her.

Relief.

Not to be alone in this cold, white world.

She pressed fingertips lightly against the cold window glass.

The animals remained still beneath the drifting flakes of snow, their antlers splaying upward like exposed nervous systems.

A stabbing pain detonated suddenly through her skull.

Stella cried out and staggered backward, tumbling to the floor.

The cabin lights flared violently.

For an instant the cabin became the hospital again.

Monitor tones.

White sheets.

Voices.

“…increased intracranial pressure…”

“…she’s nonresponsive…”

“…family should prepare…”

Darkness swept across her vision.

When she opened her eyes she was laying on the cabin floor.  It was dark outside.  Hours may have passed.

Sick with dizziness she rolled onto her hands and knees.

Fat drops of blood splattered onto the floorboards.

Did she hit her head?

Disoriented, Stella touched her forehead.

Blood coated her fingertips.

She reached again.

Something protruded through the wet, matted tangle of her hair.

She sucked in a breath.

Pulling herself up to the sofa, then staggering across the room, she made her way to the mirror.

Rivulets of blood streaked down her face like snowmelt.

The protrusions had broken.

Ivory-colored growths emerged from her scalp above both temples.

Not large.

Not yet.

But unmistakable.

Stella stared at them silently.

Her scientific mind tried desperately to categorize what she was seeing.

Osteogenic overexpression.

She leaned both hands against the sink.  Blood from her hands smeared the rim.

The room pulsed faintly around her.

The hospital smell returned again.  Stronger now.  Overrunning pine and stone and kerosene.

Antiseptic. Plastic tubing. Sterile linens.

She could almost hear shoes squeaking across polished floors somewhere nearby.

No.

Focus—focus—focus…

Focus.

Stella forced herself to breathe slowly.

Expressions were escalating after infusion cycles.  That’s what MRC – O was supposed to do.

There was still a process.

The protocol was working.

She looked back at her reflection.

The small antler buds erupting through her skin seemed almost delicate beneath the bloodstains.

They were beautiful.

She was becoming beautiful.

Outside the window the herd remained gathered beyond the trees.

Stella wiped the blood from her forehead carefully.

Then she smiled.  She was glad they had not deserted her.