"Excuse me," says Serah, "what?"

"...Oh," says Angela. "In these other worlds... sometimes there are copies of people. If there are more of you, I haven't encountered them, but there are several of me, and of Micaiah, and some of them are also together, and one of those sets has two daughters. The eldest looks like Damaris, only older and not an an angel - the younger is like Keziah in the same way."