The energetic explorer draws on his knowledge of the great Gobi desert and expeditions of scientists into Mongolia to write a lively account of an American expedition in 1920 in that region. The leader, Benton, and his strong Alsatian wolfhound, Wolf, find that in order to push into the great wild wastes they must be on constant guard against the attacks of marauding Chinese bandits and power-mad local chiefs. They find the Mongols a brave, independent people and Benton finds a true friend in the Ulan Khan, a cultured and proud Mongol chief who, in his intense loyalty, his serene outlook and disarming simplicity, represents to Benton the ideal of an Oriental. There are bandit raids, a visit to a fiendish, brutal Mongol chief, discoveries of fossils and lots of glimpses of the wild plains of the Gobi. Exciting reading, although Benton is almost too ruggedly Frank Merriwell and the white supremacy attitude toward all Chinese is unpleasant. Should go for dog lovers as well as adventure fans.