A game in 24 episodes - playable in one evening or 24 days. In the letterbox of Professor Charlie's famous tinkering workshop you will find 24 puzzling letters that excite your curiosity. No trace of Professor Charlie. You set off on a long puzzle journey - directly on the crazy professor's trail. Can you solve all the puzzles and follow his journey? Are you trustworthy and smart enough to learn about Professor Charlie's secret discovery? The puzzle game is divided into 24 episodes. You should allow about 3-4 hours for the entire game.