Eleven-year-old Fennymore lives with his strange great-aunt in an old house with only a magical bike for company. After she dies, Fennymore sets off with his new friend Fizzy to find his parents, who mysteriously disappeared. They fall foul of a silvery grey gentleman and an evil doctor who wants to get his hands on his father's mysterious invention.

A brilliant and hilarious adventure from award-winning author Kirsten Reinhardt with black-and-white line drawings by David Roberts

Translated from the German by former Irish Children's Laureate, Siobhan Parkinson.