To save the Stratoship H.22; designed by their father and now threatened by gangsters, Jo and Zette have taken off in the aircraft. Their pet monkey Jocko has gone too. They crash land near the North Pole and nearly perish in a snow storm. But they battle on to save the Stratoship, and, in a race against time, to win the trans-Alantic challenge. The Adventures of Tintin are world famous, but Herge also created other stories and characters that continue to delight. Here is Part Two, which follows Part One: Mr Pump's Legacy, of a classic two-part tale originally created in the nineteen-thirties.