Twelve-year-old Jagna and her cousin Staś find a hidden path in the old forest, where a forgotten opening begins to glow and something unseen stirs in the dark.
Jagna always felt safest in the old forest, where the sun had to push hard to reach the ground and the air smelled of moss, wet bark, and mushrooms. The adults from the village called it Stare Bor and spoke about it in low voices, as if the trees could listen. Jagna liked that. It made the forest feel alive.
That morning she waited beneath the great oak at the edge of the woods, turning an owl feather between her fingers. Staś came scrambling up the hill a moment later, red-faced and breathless, with a folded scrap of yellowed paper clutched in his hand.
"I found the map," he said, holding it out like treasure. "It was hidden in my grandfather's chest."
Jagna took it carefully. The lines were faded, but one path stood out, curling away from the rest like a thread pulled loose from an old shirt. "This isn't one of the village trails," she said.
"That's what I thought." Staś jabbed a finger at a mark near the edge. "See this? It looks like it leads deeper in."
They followed the map under the watch of blue jays and whispering leaves. The forest grew thicker with every step, the ground soft beneath their boots, ferns brushing their knees. Just when Jagna was beginning to think the paper was nothing more than an old game, she stopped so suddenly that Staś nearly bumped into her.
Between the roots of a huge beech tree, half-hidden by moss, was a narrow split in the earth. It looked as if the ground had cracked open and then tried to heal itself. A faint sound drifted from inside, too soft to be sure of, like someone humming through a wall.
"Did you hear that?" Jagna whispered.
Staś leaned closer, and the moment his shadow touched the opening, the forest went perfectly still. The birds fell silent. Even the wind seemed to hold its breath. Then, from deep inside the crack, a warm golden light began to rise, flickering against the roots like fire trapped underground.
Staś swallowed. "We should probably not go in," he said, though his hand was still reaching forward.
Jagna stared into the glow, her heart thudding hard, as the whispering grew louder and something moved in the darkness below.