An X-ray machine reveals the presence of a corpse in an Egyptian sarcophagus. It is not that of the ancient high priest. Instead the body is that of the archaeologist who was thought to be on a trip to the Upper Nile, but is now found murdered.
Charlie Chan in Egypt
While investigating the theft of antiquities from an ancient tomb excavation, Charlie discovers the body of the expedition's leader concealed inside the mummy's wrappings.