Charlie Chan Carries On (1930) is the fifth novel in the Charlie Chan series by Earl Derr Biggers.
Inspector Duff, a Scotland Yard detective and friend of Chan's, first introduced in Behind That Curtain, is pursuing a murderer on an around-the-world voyage; so far, there have been murders in London, France, Italy and Japan. While his ship is docked in Honolulu, the detective is shot and wounded by his quarry; though he survives, he is unable to continue with the cruise, and Chan takes his place instead. Eventually, after more murders, Chan finds the killer before the next port of call.
The 1940 film, Charlie Chan's Murder Cruise, starring Sidney Toler, Oland's successor in the role, was also based on the novel.