Complex sentence: Phaedra and her sisters, assaulted by Hyperion's guards, kill them, and Phaedra organizes a riot, using the chaos to escape with Theseus, Stavros, and the other slaves.
Split into simpler sentences: Phaedra and her sisters, assaulted by Hyperion's guards, kill them, provoking a riot. She uses the chaos to escape with Theseus, Stavros, and other slaves.