Complex sentence: Apollo tries to go back to the camp, but starts hallucinating and before he passes out, he finds Rhea, who gives him wind chimes to put on the largest tree in the Grove of Dodona, who will give prophecies.
Split into simpler sentences: Apollo tries to return to the camp, but begins to hallucinate and before passes out, he finds Rhea. She gives him wind chimes to put on the largest tree in the Grove of Dodona, which will give prophecies.