Jędrek the hedgehog and his forest friends find an old map and a rusty key, then follow a trail of clues deep into the woods, where something hidden begins to stir.
In the middle of Chattering Forest, where the oaks leaned together like gossiping giants and sunlight slid in bright strips through the ferns, lived Jędrek the hedgehog. Nothing escaped his notice for long. He listened to frogs splashing in the stream, studied the strange marks on butterfly wings, and asked questions about almost everything.
One morning, while dew still shone silver on the grass, he set off with his best friend, Rudek the squirrel. Usually Rudek bounced along with his tail high, but today he kept glancing over his shoulder.
"I heard something knocking last night," he said in a low voice. "Right under the old beech tree. It went on and on until dawn."
Jędrek slowed. "Knocking? From what?"
Before Rudek could answer, Klotylda the owl dropped from the branches above them and landed soundlessly on a root. Her feathers ruffled in the breeze.
"If you're looking for something unusual," she said, "check the hollow under the old oak. But hurry. Forest secrets do not like to wait."
With that, she lifted her wings and vanished between the trees.
The two friends hurried to the oak tree. Inside its dark hollow, tucked beneath a nest of dry leaves, they found a rolled-up map covered in tiny tracks and strange symbols. Beside it lay an old, rusty key.
Rudek stared. "Someone hid this on purpose."
Jędrek picked up the key. It was cold and heavier than it looked. A little shiver ran through his paws.
By breakfast, the news had already spread. Hela the mouse arrived first, then Bonifacy the badger, and finally Filip the starling, who circled overhead chattering questions before he even landed. Together they unrolled the map and studied the winding lines.
The trail led through brambles, across a murmuring stream, and into a clearing where the grass grew soft as moss. Hela found tiny paw prints beside a stone. Rudek spotted a symbol scratched onto a leaf. Bonifacy pushed aside tangled roots to reveal the next mark. Jędrek kept the key tucked safely against his chest, sure now that it belonged to something hidden deep in the forest.
At last they reached a place marked with a shiny leaf. Half-buried in the earth was a little wooden door, no bigger than a badger's den, with a lock just the size of Jędrek's key.
His heart knocked harder than Rudek's story had.
He knelt, slipped the key into the lock, and turned it slowly.
From somewhere beyond the door came a sudden scrape in the dark, followed by a low sound that made every leaf around them tremble.