This book not only renews the way we "see" mathematics. Through the imagination and the little Alex as a travel companion, it leads us to discover the "mathematical" logic hidden in nature and its secrets, to meet enigmatic personalities of antiquity and to be initiated into the mysteries of the sky and the wonders of symmetry. At the same time, it confronts the young protagonist with a series of questions about life and the world, the exploration of which constitutes a real "adventure" for every restless spirit.