"No. He didn't make me do it, Zoe. No one did. I chose to do to it." That much was true, at least - though her use of magic may also have something to do with it. "I haven't betrayed you, or the Alchemists, Zoe - " She broke off when her sister stood, shifting to the edge of the couch to watch.
"Okay," she said after a moment, studying Zoe. "But do you remember Keith? How he was before, when he came to our house? Now think about how he was when we talked to him on that video chat, on dad's laptop. He had a total personality change, Zoe - they did something to him in re-education." She took another deep breath, letting it out slowly. "Like they tried to do to me, in the time you're from."