Mr. Pump's Legacy

Mr Pump's legacy is ten million dollars. It will go to the builders of the first aeroplane to fly from Paris to New York at 1000 kilometres per hour. To save 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. Short of fuel, they land on a desert island...