"We're gonna make sure he won't. There's enough magic in the Library to help me keep him contained."

But he's touched by what Jacob is suggesting. Keeping the pendant on to protect him. That's what he is, a protector. Looking out for Flynn. Looking out for Ezekiel. Fighting back even the will of his evil self to help his friends.

"I can't let you do that. That pendant has hurt you enough. You need to live your own life again."

He squats down so they're at eye-level. "You're a great friend. And you're one hell of a Librarian. It's time for you to get that back."