Through a series of dangerous and violent misadventures, teenage loser Alfred Kropp rescues King Arthur's legendary sword Excalibur from the forces of evil.
Twelve-year-old Basil meets an eccentric professor with a flying boat and sets off on a journey into the clouds, where they find a floating city filled with otherworldly inventions and ideas.
Eleven-year-old Sam finds himself involved in a dangerous adventure when he and his new friends, brother and sister Ben and Zara, set off for the Arctic to try and rescue the siblings' great-uncle and five other professors from the mad scientist holding them prisoner.
A fictional story about a secret American expedition to find the South Pole in 1909, made up of a famous Arctic explorer, his teenage son and stepson, and the expedition's multimillionaire sponsor's young nephew.