Agatha Christie disappearance in 1926, forever.
New Timeline: Agatha Christie was found in 1926.
The most famous mystery writer of her day, Agatha Christie, in 1926, disappeared from her Berkshire home. Over 1,000 police officers and aeroplanes searched tirelessly. Her 7 year old daughter, Rosalind, was left behind.
On the new timelines, she turned up in a hotel in Yorkshire 11 days later. On the old, she was never found.