The Question and Answer section for The Odyssey is a great resource to ask questions, find answers, and discuss the novel.
I think this comes after book 21. Odysseus is trying to see who his true friends are by how they react to him before he reveals himself.
Odysseus is the epic hero of The Odyssey. A lot happens to him. You need to be a little more specific.
Sorry, this is only a short-answer space.