Biff Brewster, sixteen, is a tall, strongly built blond youth who lives in Indianapolis, Indiana, with his parents and the eleven-year-old twins, Ted and Monica. Because his mother and father believe that travel is as important to education as formal schooling, Biff is encouraged to travel to various countries during the vacation months. His experiences in these lands, and the young people he meets there, form the basis of a new series for adventure-loving readers. In every journey there is a strong element of mystery, usually a direct result of conditions peculiar to the region in which he is traveling. Thus, in addition to adventure, these books impart carefully re-searched information about foreign countries."Andy Adams" was a house name used by Grosset & Dunlap for their "Biff Brewster Mystery Adventure" series. Walter B. Gibson, famous author of The Shadow novels, wrote and/or co-wrote 5 books in the series including "Mystery of the Ambush in India".