Answer: Roald Dahl was a spy, an ace fighter pilot, a chocolate historian and a medical inventor.
Roald Dahl enlisted in the Royal Air Force at 23 years old.
In September 1940, Dahl received severe injuries to his head, nose and back when his Gladiator crash-landed in the Western Desert.
After six months recovering from his injuries in Alexandria he returned to action, taking part in The Battle of Athens. Later, after a posting to Washington, he supplied intelligence to MI6.
In 1960 Roald helped invent the Wade-Dahl-Till valve, prompted by the need to alleviate the head injuries endured by his son after an accident in New York.
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