an old fortress on the Nile, a despotic Hindu is holding a British
explorer as his prisoner, Sir Hubert, who has discovered the hidden
tomb where Cleopatra's treasure is buried. Sir Hubert refuses to disclose
the location of the jewels, and the Hindu goes to England and tricks
the London Geographical Society into organizing a rescue mission.
Included in the expedition is Sir Hubert's fiancée, Ellen.
A young explorer, Dr. Faraday, convinces the Society that the trip
should be made by balloon, and he, Ellen and the Hindu set out for
Egypt. After several adventures, including their temporary capture
by cannibals and an attack by huge condors, the trio arrive at the
Nile fortress. The Hindu has Ellen tortured on a stretching rack,
but the greedy Sir Hubert still refuses to divulge his secret.
They are both rescued by Faraday, but Sir Hubert dies trying to load
the balloon with chests of treasure. Faraday and Ellen make their
escape but are forced to jettison the gold and jewels in order to
keep the balloon aloft. Ellen, however, saves one diamond for a wedding
Mala Powers - Ellen Marshall Thompson - Doctor Farady
James Lanphier - Hindu
Douglas Kennedy - Sir Hubert
Robert W. Gillette - Sir Adam
Felippe Birriel - Golem
A.J. Valentine - Giles
Blanquita Romero - The Malkia
Jackie Ronoro - Native dancer