The Mansion of Mystery: Being a Certain Case of Importance, Taken from the Note-book of Adam Adams, Investigator and Detective

Chester K. Steele was a house pseudonym used by the Stratemeyer Syndicate for a series of mystery books. These were aimed at an older audience than most of the other syndicate books. The first title, The Mansion of Mystery, was written by Edward Stratemeyer and the rest were ghostwritten.