Did Karyn changed?

He pointed it to Karyn and for a while she thought he would fire, but it last only a second before he had used the rock to teleport them to the Macmillan house with the words: "I wish Karyn and I were invisible at the Macmillan's house, because we are able to teleport us a distance of five miles every hour when we both accept to do it, and we are temporaly invisible except to each other every time I want until I doesn't want it anymore" So they appeared in ront of the Macmillan's house, where they could see Sarah in her room...