Agatha Christie is perhaps the most famous mystery and crime writer of the 20th century. In 1923 she started a real-life mystery of her own that has persisted to this day: she disappeared.
They found her car abandoned above a quarry, leading many to think she had committed suicide. More than 15,000 volunteers (and hundreds of police officers) searched for her. Spirit mediums were called! Other crime writers joined the hunt!
Agatha Christie was eventually found under an assumed name at a hotel in Yorkshire. She claimed amnesia about the whole incident. The name she was found under was the same as her husband’s mistress. Was it a publicity stunt? A too-public breakdown? Was she trying to frame her husband for murder? We don’t know, and probably never will.