The wind on the moors was a living thing, a biting, wet maw that sought the warmth in her bones and tore it away. Toxin, as she had silently named herself after seeing the word on a discarded chemical drum, was not built for the highland winter. Her human face, pale and drawn with exhaustion, was buried in the crook of her arm, but the rest of her shivered violently. The patch of midnight blue fur on her chest was matted with rain and grime, offering little insulation against the gale.

She had fled the Chimera Station three weeks ago—not because she wanted to, but because the hum of the ventilation systems had stopped, replaced by the terrifying silence of power failure. In her panic, the instinct to hide had overridden the instinct to stay. She had squeezed through a maintenance grate that the security sensors had missed, plunging into the heather and the dark.

Since then, she had been a ghost. She scoured the coastline for debris—rusting metal, glass, anything sharp or shiny—and dragged it back to a series of temporary burrows: a hollow beneath a fallen oak, a crevice in a slate outcropping, the attic of an abandoned barn. She fixed nothing. She merely survived, her raccoon eyes wide and haunted, her claws retracted tight against her fingers to avoid snagging on the world.

Today, however, she had found something miraculous.

Deep in a ravine, shielded by a tangle of gorse and thorn, stood a shack. It was rotting, the wood grey and soft with moss, the roof patched with corrugated iron that rattled in the wind. It smelled of damp earth and old mice, but to Toxin, it smelled like home. It smelled like a den that could be fortified.

She had squeezed through a gap in the siding, her narrow, adolescent frame fitting easily where a grown human could not. Inside, it was dry. It was dark. It was safe.

Driven by the “Nester” instinct that had been dormant in her weeks of flight, she set to work. She didn't sleep. She couldn't. Instead, she swept the floor with her hands, gathering dust into neat, obsessive piles. She aligned scattered stones by the wall into a perfect spiral. She used her claws to trim the loose threads hanging from a tattered curtain, snipping them with surgical precision until the fringe was perfectly even.

It took hours. By the time she was done, the shack was no longer a ruin; it was a curated nest. Exhaustion, heavy and absolute, finally crashed over her. She curled up in the corner atop a pile of dry sacking, her tail wrapping over her nose, her digitigrade feet tucking in close to preserve heat. The steady rhythm of the rain against the roof became a lullaby. For the first time in a month, the chattering in her brain stopped. She closed her eyes.

The sound of the latch turning was impossibly loud in the quiet of the ravine.