Sherlock Holmes is called out of retirement once again to transport the world's most valuable diamond from Africa to London.

Sherlock Holmes is called out of retirement once again to transport the world's most valuable diamond from Africa to London.

Sherlock Holmes is called out of retirement once again to transport the world's most valuable diamond from Africa to London.

Sherlock Holmes and Dr. Watson - "the world's most famous detectives" - travel to Capetown, South Africa, to save the world's most famous diamond, The Star of Africa. But any case in which Holmes is involved is complicated, and this one is no exception. On route via Africa's "Orient Express," someone is killed and one of the passengers is the murderer. While attempting to solve the case, our heroes encounter ex-President Teddy Roosevelt, Lily Langtry and Giuseppe Marconi, all of whom become suspects! Finally, with uncanny powers of observation and brilliant wit, Holmes pieces together the puzzle to both the murder and the plot to steal the diamond. But with time running out and his own life in jeopardy, how does Holmes save the day? Elementary, my dear...