Inv. #4147B-26. First edition of this classic Sherlockian pastiche featuring Holmes and Lord Greystoke (aka Tarzan) battling German agent Von Bork (of "His Last Bow") in Africa in 1916. Farmer was the "American Agent for the Estates of Dr. Watson, Lord Greystoke, David Copperfield, Martin Eden, and Don Quixote." An exceptional copy of this important book that will appeal to collectors of Sherlockiana, Tarzaniana, Farmer, and Science Fiction.; Small 8vo 7½" - 8" tall; viii, 111 pages