Ketos

Ketos was a baleful sea monster in Greek mythology.

When the legendary hero Perseus was returning from his successful quest of slaying the gorgon Medusa, he noticed the maiden Andromeda chained to the cliffs as a sacrifice for Ketos. Perseus fought the monster, and bested it, saving Andromeda, whom he married.

Appearances

 * Assassin's Creed II
 * Assassin's Creed: Odyssey