[ josh are you really going to make him use his words. ]

It is. And I took it.

[ there's an awkward pause, like derek isn't sure how to explain this. which is partially because peter hadn't explained it very well in the first place, and derek had only paid attention to what had been relevant at the time. ]

An alpha can use their power to heal a member of their pack. A dying member. It takes all of it.