Chester K. Steele

"Chester K. Steele" was a pseudonym of the Stratemeyer Syndicate, founded by Edwin Stratemayer. The Stratemeyer Syndicate was the producer of a number of series for children and adults at the beginning of the twentieth-century. They pioneered the technique of producing long-running, consistent series of books using a team of freelance authors to write standardised novels. The novels were published under various pen names owned by Stratemayer's company.
The Chester K. Steele books are a mysteries intended for an older audience than the children's books like the Rover Boys and the Bobbsey Twins series Stratemeyer normally produced, including: The Mansion of Mystery (1911), The Diamond Cross Mystery (1918) and The Golf Course Mystery (1919). The first title, The Mansion of Mystery, was written by Edward Stratemeyer and the rest were ghostwritten.