Books with title The Fantastic Flying Bicycle

Great-uncle Lancelot is an extraordinary man with a huge white beard and a walrus moustache. When he builds a fantastic flying machine, powered by tree sap, lit by electric eels and heated by solar panels, his niece and nephews have never seen anything like it. Then, in search of his lost brother, Perceval, he whisks the children off on an amazing journey around the world.Lancelot's remarkable knowledge and the special powers he gives the children enable them to watch and talk to some incredible creatures - but they also encounter many dangers along the way. And throughout their journey, one question remains. Will they ever find Perceval?