Scottsdale, AZ: Poisoned Pen Press, (2006) dj. SIGNED hardcover first edition - Set in 1898 in Oklahoma City and Sedalia Missouri, this is Karp's fifth mystery and the first novel in the The Ragtime Mystery trilogy. "Larry Karp found a worthy, though neglected segment of American music history to set a cleverly devised story of fact and fiction. By filling some of the undocumented gaps with a plausible tale, he retells the early history of ragtime, with its undercurrent of racism and business dealings. Along the way he provides deserving recognition for several creators of the art form, aside from Scott Joplin and "The Ragtime Kid," Brun Campbell." (David Reffkin) INSCRIBED on the title page. Selected bibliography. 353 pp. ISBN: 1-590583264.

Scottsdale, AZ: Poisoned Pen Press, (2010) dj. SIGNED hardcover first edition - The third novel in the Ragtime Mystery trilogy, set in 1950 Sedalia, Missouri, where ragtime is making a comeback and plans are underway for a celebration to honor Scott Joplin- INSCRIBED on the title page. Includes a long afterword by the author, a list of ragtime resources and a selected bibliography. 303 pp. ISBN: 9781-590586990.

Scottsdale, AZ: Poisoned Pen Press, (2010) dj. SIGNED hardcover first edition - The second novel in the Ragtime Mystery trilogy, set in 1916 where time is running out for Scott Joplin- INSCRIBED on the title page and dated in the year of publication. Includes an afterword by the author, a list of ragtime resources and a selected bibliography. 296 pp. ISBN: 978-1590585269.