'The dumb detectives, Clipper and Brown, accept an assignment in Egypt, to guard a mummy during transportation from the Valley of the Kings to a foreign destination. Their employer, one Zapara, has heavily insured the mummy, and schemes to get it both ways. Clipper and Brown arrive hard, on a soft spot by aeroplane. Their first impressions of Egypt are obtained in a harem, which they are persuaded to leave only when the desert men return from a tribal skirmish. They meet Shirma, an eastern beauty who causes Clipper to reflect, and almost stray from the path of duty. Brown has perforce to guard Clipper as well as the mummy.'
Source: [Radio guide], Wireless Weekly, 1 June 1940, p.26.