Lena and Oskar uncover a mirror-portal in an abandoned house and step into a shifting world where the way back vanishes the moment something begins to hunt them.
The attic of the abandoned house was thick with dust and silence, the kind that swallowed sound before it could settle. Lena and Oskar climbed the narrow stairs with torches in hand, more excited than afraid. Their grandmother had sworn the old place still kept its secrets, hidden by the family that once lived there and never came back for them.
Most of the room held the usual ruins of a forgotten life: warped trunks, collapsed shelves, books gone soft with age. Then Lena stopped.
Against the far wall stood a mirror taller than either of them, its frame carved with twisting dragons and small, bright stars that seemed almost untouched by time. The glass was clouded with grime, but the shape of it was wrong somehow, too deliberate to be part of the rest of the attic.
Oskar stepped closer first. "This doesn't belong here," he muttered, though his voice had dropped to a whisper.
Lena smiled despite herself. "Maybe it's a door in disguise."
"Or a trap."
He raised one hand and touched the glass.
The surface shivered.
A cold draft swept through the attic, lifting dust in a sudden spiral. For one heartbeat the mirror showed only their reflection, side by side in the torchlight. Then something shifted behind them. Not in the room, but in the glass itself: a darker shape sliding past, slow and patient, like a shadow detached from the thing that cast it.
Lena's breath caught. She reached out before she could stop herself and laid her palm against the mirror.
The glass was icy. Then it gave way.
Not like breaking. Like sinking into water.
Oskar swore under his breath and grabbed her arm, but the mirror had already opened around her hand, soft and deep and impossibly dark. In the next instant they were both falling forward, through a pressure of cold and light and something that felt alive under their skin.
They stumbled out onto stone.
A vast square stretched around them, lit by a red sun that pulsed overhead as if it had a heartbeat. Arches and gate-like openings ringed the place, each one revealing a different world beyond it: a forest with silver leaves, a corridor lined with doors, hills that moved when Lena looked directly at them, and a river that seemed to change direction every time she blinked.
"Where are we?" she whispered.
Neither of them had time to answer.
A figure burst from one of the nearest arches, breathing hard, long silver hair whipping across her face. Her eyes were bright as emeralds, fierce with panic. Behind her, heavy footsteps struck the stone in a growing rhythm, and the air began to tremble around them.
She seized Lena's stare for a single, urgent second. "You have to run," she said. "They know you're here."
From deep within the red corridors, something answered with a low, dragging cry.