Complex sentence: The Princess mocks Ayesha's fading youth; and feeling ashamed, in front of Kallikrates, Ayesha determines to break her oaths, and make herself and him both immortal, to rule the world, like Gods, by stepping into The Flame.
Split into simpler sentences: The Princess mocks Ayesha's fading youth; and feeling ashamed, in front of Kallikrates. Ayesha decides to break her oaths, and make herself and him both immortal, to rule the world, like Gods, by stepping into The Flame.