"Do you know what is terrible about being eight years old?"
Dragged to St Peter's Basilica in Rome, Maxwell wonders what can be worse. On holiday with his parents, the list of boring visits grows too much for his taste. Max wants to become a knight and rescue princesses, not to discover already known places. 
Then a secret is uncovered, and Max jumps on the occasion to make a wonderful discovery. He is a genius after all.
But the world can be enormous when you are a child, and finding his parents turns out to be quite a challenge. Who is going to help him?
A cute and funny story of imagination, curiosity and adventure.