Mr. Penguin and the Lost Treasure (Mr. Penguin series)

Detective Mr. Penguin is asked by Bouddica Bones of the Museum of Extraordinary Objects to locate valuable treasure before bandits can take it. With Colin, his martial-arts-expert spider assistant, he follows a map and clues through secret staircases, alligators, and falling toilets. As the search continues, Mr. Penguin learns that the people behind the theft may be much closer than expected. The mystery is accompanied by two-color illustrations.