Agatha became skilled at body-boarding in South Africa, Australia and New Zealand, and in Hawaii she learned to ride while standing on the board.
Agatha Christie essentially invented the standard modern crime fiction formula that most TV shows follow: A murder is committed, multiple suspects (all concealing secrets), the detective gradually uncovers the secrets, discovering the most shocking twists towards the end and solving the crime.
When Agatha Christie mysteriously disappeared in 1926, the police asked Arthur Conan Doyle to help find her.
Agatha Christie’s novel “Elephants Can Remember” reveals distinct signs of Alzheimer’s onset, e.g., 20% fewer words or ⅕ of her vocabulary lost; 6 times more use of nonspecific words such as “thing”, and a sharp drop in “idea density”. That novel’s last line is “Maybe it’s OK not to remember.”