After encountering the Sirens, Odysseus and his crew face the challenges of Scylla and Charybdis. Scylla is a monstrous sea creature with multiple heads that snatches sailors from their ships, while Charybdis is a whirlpool that threatens to swallow the entire vessel. Odysseus must navigate between the two, ultimately sacrificing a few of his men to Scylla in order to save the rest of the crew. This encounter highlights the perilous journey home and the difficult choices Odysseus must make.
Yes; the Sirens sang their enchanted song, and attempted to lure Odysseus and his men to their doom.
They Sing
He was warned about the Sirens by one of the spirits he met in the underworld.
the sweet songs of the sirens lead their men to death
The sirens are a danger that Odysseus and his men must pass to return home.
He plugged the sirens ears and avoided the Charybdis
he made his crew put wax earplugs in their ears. he himself wanted to hear the sirens beautiful music, so he asked his crew to tie him to the mast, the foundation of a sail. Odysseus's crew ties Odysseus very tightly to the mast, and disarmed him. When the were going past the sirens, Odysseus was screaming and yelling at his crew to let him go to the sirens. The crew obviously did not hear him because they had the wax ear plugs. That is how Odysseus saved his crew from the sirens.
Book 12
Circe
he ate them
I believe you are referring to the sirens. They sirens are women Odysseus stumbles upon on his journey who sexually lure Odysseus and distract him from his ultimate goal.
He wanted to hear the sirens so he told his men to tie him to his ship's mast and to put beeswax in their ears. So, Odysseus heard the sirens but could not be drawn to them as he was tied down.