The Giant Detective Among The Cowboys. The Weird Narrative Of A Lost Man "OLD SLEUTH" First edition. Paperback original. *Adventure Series No. 105.* Digest size, color, pictorial wrappers, 192 pp. Front cover title is *"The … $150.00
The Great River Mystery OLD SLEUTH First edition. Paperback original. *Adventure Series No. 87.* Digest size, color, pictorial wrappers, 185 pp. Near fine copy of a … $150.00