DOUBLE TROUBLE : A BIBLIOGRAPHIC CHRONICLE OF ACE MYSTERY DOUBLES - FIRST . Mercer Island, WA: Starmont, 1992. Signed First Edition. 5 1/2 x 8 1/2. Trade Paperback. Signed by Author. Fine / Fine. ISBN: 1-55742-118-8. Double Trouble tours the short yet popular ear of the Ace Mystery Doubles and includes both author-title and title indexes for easy reference. Mr. Jaffery's introduction offers valuble insight into the history and origins of how Ace Doubles come into print. Series featured: D Series 1952-1961; F Series 1961-1963; G Series 1963. 150 pages.