Many children perceive mathematics as difficult or lacking in appeal. This project aims to change that perception through an exciting international adventure in which pupils aged 7 to 11 will explore mathematics in a playful and mysterious way. Based on the story of Professor Numeronius – an adventurous mathematician who hid a treasure of Logical Thinking – students will solve challenges, puzzles, and math riddles to discover the treasure. The project promotes learning through play, international collaboration, logical thinking development, and digital skills in an engaging and motivating way.