Paddington and the Marmalade Maze - Michael Bond

Mr Gruber takes Paddington on a visit to Hampton Court. As usual, Paddington manages to turn a perfectly normal outing into an adventure. Mr Gruber and Paddington are just about to be followed home by a crowd of eager tourists, when Paddington manages to lose them all in the maze. But, mysteriously, Paddington and Mr Gruber manage to escape from the maze unscathed.