Ned Seagoon is duped into moving a piano from one room to another for £5, only to find that the piano is in the Louvre Museum in Paris, and must be brought back to England.
Ned Seagoon, adopted son of one of the adopted wives of famous amateur brain surgeon Lord Grytpype-Thynne, returns home after forty-three years at college.
£5,000 reward is offered for the solution of the mystery of the Marie Celeste, so with the aid of a duplicate Marie Celeste, Neddie Seagoon solves this famous sea mystery.
In 2000 B.C. the International Christmas pudding was destroyed and its fragments scattered. Ned Seagoon searches for one of the missing portions in darkest Africa.