Derek had an armful of excited Stiles, and he eyed Allison over the top of his head. "It's temporary," he said, gruffly. He wasn't so cruel as to want to return an unhappy human to her Mistress. Especially when that Mistress was Eterna, and Derek still hadn't forgiven her for the way she'd treated Stiles--even if she'd done it at Laura's request. That was a separate issue.
"You're gone by the full moon," he decided. It would be best for everyone, especially if there were going to be non-pack people roaming Hale lands.