Achilles was a great warrior who fought in the Trojan War on the side of the Greeks.
When he was born, his mother discovered that his fate was to die in combat. She tried to make it impossible for weapons to hurt him by dipping him in the sacred river Styx. In order to do that, though, she had to hold him by one heel, and that part didn't get wet.
Paris, prince of Troy, shot an arrow at Achilles during combat in the Trojan War. The god Apollo guided it into the one place where Achilles could be hurt, his heel. He died in combat just as the prediction said.
A person's "Achilles heel" is his or her ? .
