A young English adventurer in India during the 1920s sets out to find a piece of jade with supernatural powers and the hidden valley inhabited by a holy lama who can reveal the secrets of the universe.
Talbot Mundy (23 April 1879 5 August 1940) was an English-born American writer of adventure fiction. Based for most of his life in the United States, he also wrote under the pseudonym of Walter Galt. Best known as the author of King of the Khyber Rifles and the Jimgrim series, much of his work was published in pulp magazines.