It's time to leave Roderick and Greer for a bit and take a peek at what the Winter Queen is up to.
The new fellow is Jack Frost, Winter's official messenger, enforcer, and assassin. As old as Puck, and nearly as powerful, Jack is Winter's favored troubleshooter. Unlike Puck, Jack is direct and uncomplicated, preferring to deal with his enemies quickly without hope for political gain or entertainment.
He's very devoted to the Winter Queen. And, as you can see, he doesn't approve of Puck's current actions or of his past betrayal.