David Clyde

A shy young heiress marries a charming gentleman, and soon begins to suspect he is planning to murder her.

After a gentlewoman is found dead with her throat torn out, the villagers blame a supernatural monster. But Sherlock Holmes, who gets drawn into the case from nearby Quebec, suspects a human murderer.

Sherlock Holmes investigates a series of deaths at a castle with each foretold by the delivery of orange pips to the victims.

A landlady suspects that her new lodger is Jack the Ripper.

The invention of an atomic weapon - a long-range ray that can detonate explosions - sends Scotland Yard and Captain Drummond into action.