Derleth, August, 1909-1971., The casebook of Solar Pons /August Derleth. - Pinnacle Books edition. - New York : Pinnacle Books, (c)1975. - 277 pages : map ; 19 cm. - Solar Pons series . Includes 11 mysteries solved by Solar Pons, the Sherlock Holmes- like detective genius. LC Class. No.: PS3507 / .C374 1975