"I could only think that the reason Aro had decided to come himself, to bring so many with him, is because his goal is not punishment but aquisition " Eleazar said. "He need to be there to control the situation. But he need the entire guard for protection from such a large, gifted coven. On the other hand, that leaves the other ancients unprotected in Volterra. Too risky - someone might try to take advantage. So they all come together How else could he be sure to preserve the gifts he wants? He must want them very badly," Eleazar mused.
Edward's voice was low as a breath. "From what I saw of his thoughts last spring, Aro's never wanted anything more than he's wanted Alice." ... "Is that why Alice left?" ~ Eleazar and Edward, chpt 31