Mystery of the Riverboat. Word Search Puzzle Solver. Mystery of the Riverboat word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. A movie serial in 13 chapters: Some swampland becomes valuable and various factions squabble over ownership of it. This includes identifying and searching for words that are related to : Joe Devlin, Byron Foulger, Francis McDonald, Oscar OShea, Crime, Arthur Hohl, Dick Curtis, Marjorie Clements, Ralph Sanford, Anthony Warde, Jimmie Dodd, Lyle Talbot, Marion Martin, Eddy Waller, Earle Hodgins .