 Hypatia's former pupil, Synesius, now the Bishop of Cyrene, comes to her rescue as a religious authority counterweight but says he cannot help her unless she accepts Christianity; she refuses.Hypatia theorizes that the Earth orbits around the Sun in an elliptic orbit, not a circular orbit, with the Sun at one of the foci.Cyril convinces a mob of Christians that Hypatia is a witch, and they vow to kill her.