Andrew casts a driven glance up at him. "Because if he can follow me home, if he can track me to my world -- I can't do that. I can't. We've got no defenses that could stand against him, I don't know if I'd even have time to warn anybody. But if -- if he'd be using me against your world for something worse ...."

He swallows.

"I don't need to run. I need to hide."