Ephialtes (he who leaps upon) In Greek mythology, a giant, son of Poseidon (or Aloeus and Iphimedeia or Uranus and Gaea), twin brother of Otus. When the war between the Titans (giants) and the gods took place, Ephialtes was nine years old and had grown nine inches every month. Ephialtes was killed by Apollo, according to some accounts, or by Apollo and Heracles, each of whom shot an arrow into each eye of the giant.
SOURCE:
Encyclopedia of World Mythology and Legend, Third Edition – Written by Anthony S. Mercatante & James R. Dow
– Copyright © 2009 by Anthony S. Mercatante