Roswell and the Mud Slide

Magnus: Roswell comes surfing in through the portal on this mud slide that stops like just behind you. Then I think the scene is that Roswell, the bird just kind of flits over to your shoulder Magnus. And then a huge fucking fist shoots out of the mud slide and moves towards John and slams right into him. You get the sense that John's afraid for the first time as this fist slams into them for a pretty enormous amount of damage.