Zane Grey's King of the Royal Mounted and the great jewel mystery : based on the famous newspaper strip.

Bằng Grey, Zane, 1872-1939.
Được phát hành 1939

Flame Boy and the Indians' secret /

Bằng Arnold, Oren.
Được phát hành 1938

James Oliver Curwood's Kazan, king of the pack : another thrilling story of the great wolf-dog of the far north /

Bằng Curwood, James Oliver, 1878-1927.
Được phát hành 1940

James Oliver Curwood's Kazan in Revenge of the north : the story of a great dog /

Được phát hành 1937