The Ghoul

In this horror film, Professor Morlant (Boris Karloff) is an Egyptologist who is a believer in the powers of ancient Egypt. On his deathbed, he instructs his servant (Ernest Thesiger) to bury with him "The Eternal Light," a jewel that was said to give its holder eternal life. When a greedy student steals the jewel, Morlant rises from the dead to seek revenge.