Poznań, 19th century. It's your first day as a detective when a stranger presses an old journal into your hands and vanishes. “It's hidden there, where it began. If you find IT, you can find THEM.” The journal is filled with maps, riddles, and coded messages. First day on the job, and already a mystery to solve.

This self-guided city game uses the Questo app to lead you through 11 chapters across 3.06 km of Poznań's Old Town. Start anytime, play at your own pace, and follow the journal's clues from the Old Market Square to the island where Poland began. No guide or fixed schedule: just you and your first case.

Your investigation takes you past the Town Hall with its mechanical goat clock, the hotel where Napoleon once stayed, the Fara Church, the Royal Castle's hidden free garden, the Old Synagogue, Ostrów Tumski Cathedral (the birthplace of Poland), and a bridge transported 2 km by river.

Suitable for all ages and group sizes. Comfortable walking shoes recommended.