Lynceus, along with his brother
Idas, murdered
Castor. He helped Idas to spot and kill Castor, and was in turn killed by Castor's brother
Pollux, though he first managed to wound Pollux by throwing a rock. Idas and Lynceus murdered Castor because he and Pollux had kidnapped and married
Phoebe and
Hilaeira, the daughters of
Leucippus, who were betrothed to Lynceus and Idas Lynceus was said to have excellent sight; enabling him to see through walls, trees, skin and the ground. According to some versions he was also able to see in the dark; in others his reputation for being able to see through the ground was simply a rumor that resulted from his knowledge of
geology and gold-mining. This ability has been compared to the real technique of
x-ray photography and to
Superman's
x-ray vision. ==Notes==