Appleton-Century New York 1940 544
Wells & Shakespeare
("Things seemed vague that evening …")
Cover blue—gold letters
OM; THE SECRET OF AHBOR VALLEY
Bobbs-Merrill Indianapolis 1924 392
McKinley, Stone & McKenzie (Masterpieces of Oriental Mystery)
Hutchinson
("If you want views about the world's news, read what …")
(Om; the Secret of Ahbor Valley—MAGAZINE—Adventure 10/10/24 to
10/30/24)
Cover green—black letters
PURPLE PIRATE
Appleton-Century New York 1935 367
("Hitherto I have found my real goal unattainable …")
(Battle Stations—MAGAZINE—Adventure 5/1/35
Cleopatra's Promise Adventure 6/15/35
Purple Pirate Adventure 8/15/35
Fleets of Fire Adventure 10/1/35)