Four friends camp near an ancient forest in Podlasie, where old warnings about full moons begin to sound less like superstition and more like a threat.
Białowieża Forest rose behind the village like a black wall, dense with wet earth, moss, and the smell of old wood. The elders still warned children not to wander under the oaks and lindens after dark, especially when the moon was full. Most people laughed at that. Piotr never did.
He had grown up on his grandmother’s stories, and he knew the kind of silence that lived in old places. That night, he sat with Maja, Tomasz, and Wojtek at the edge of the trees, beside a small campfire that hissed whenever the wind moved through the grass. They passed around a bottle of homemade mead and tried to turn the evening into a joke.
A little grey owl flashed above them, silent as a thrown stone.
"Spring is coming," Maja said, but she kept glancing toward the forest.
Piotr stared into the dark between the trunks. "My grandmother used to say nights like this wake the forest up. She said things that belong to one world start looking for a door into another."
Wojtek let out a short laugh. "And you believe that?"
Before Piotr could answer, a long, ragged howl tore through the trees.
The fire seemed to shrink. Even the insects fell quiet. A branch cracked somewhere deeper in the forest, followed by the slow, deliberate sound of something moving through the undergrowth. Not fleeing. Approaching.
"It could be a deer," Maja whispered.
Nobody answered her. Tomasz had already turned toward the trees, his face pale in the firelight. Piotr felt the skin at the back of his neck tighten. The moon hung above the clearing, bright enough to silver the grass, and for one terrifying second he had the sense that they were the ones being watched.
Then two yellow eyes opened in the dark.
The friends did not breathe. The owl was gone. From between the trunks stepped a shape too large for a wolf, too still for a man. Its fur caught the moonlight in a dull silver sheen, and when it stopped at the edge of the firelight, Piotr saw something worse than teeth or claws: the shape of a human body inside the beast.
Maja stumbled backward. Wojtek swore under his breath.
The creature lowered its muzzle toward the moon and gave a thin, wounded whine.
Deep in the forest, another light answered it. Red. Small at first, then brighter, as if something else had just opened its eyes and was waiting for them to notice.