Jimgrim is an American secret agent who has been recruited by the British intelligence services because of his in-depth knowledge of Arab life. However, together with his friends and compatriots Jeff Ramsden, Narayan Singh and Jeremy Ross, Jimgrim quits from the service in British Army and their little party is off on their own to fight criminals who threat the peace in the East.

Talbot Mundy (1879-1940) was an English-born American writer of adventure fiction. Mundy spent his early adult years in India, East Africa and Middle East, and many of his novels and stories are set in that part of the world. He is best known as the author of King of the Khyber Rifles and the Jimgrim series.