"Some unstable way they've got of reality-hopping. I don't know much about it, but Mom managed to use her magic to, you know, manipulate it a bit, shunt me to you. Which, hey, surprise." Pause. "I didn't bring anyone with me, so there aren't any more kid surprises. Also, not sure if it's you-you that they want, but you're the only you I know that's not the you that raised me, so I figured that you should know that they're after you."