Legend has it that Vita Caroli, the personal autobiography of Charles IV, contained more than just the story of his reign. Hidden between the lines of this famous manuscript was a secret message meant for the younger generations of the future. For centuries, the page with the message was lost—safely hidden, with no one knowing where to search. Until now.

Now is the right moment, because the ones for whom the message was intended have finally arrived. The first clue has been revealed, and the message is waiting to be discovered. But beware—time is running out… Will you manage to retrieve Charles IV’s message for the children of the 21st century before it disappears once again into the depths of time?

Are you ready to follow the trail of this ancient secret? Your mission is clear: follow the clues, solve the riddles, and gradually piece together the message Charles IV left behind for future generations. Set out on a journey through the heart of old Prague, uncover traces of history, and discover the truth hidden within the city’s walls.