Aspen Press, 1974. Unread first edition with dustjacket in mylar protector. Pages are clean with no markings. Spine is fully intact. Dustjacket has no rips or tears. From the publisher: "When Holmes and Watson are lost somewhere in British East Africa, having escaped their German captors, it is Greystoke [Tarzan] who rescues them. And it is because of his intervention that this mission, undertaken under patriotism, turns into perhaps the most unusual - and certainly the most profitable - problem ever solved by the world's greatest detective."