Answer: When he and his surviving men escape Polyphemus, Odysseus taunts the Cyclops, telling him his real name (he used a fake one before). Polyphemus (the cyclops) cries out to his father, Poseidon, who exacts revenge on Odysseus by keeping him lost at sea for many more years before finally allowing him to make it back to Ithaca and his son and wife.
