Yep, just a neat trick. No unexplainable dragon powers here.

"Guess we'll find out if he changes back just to complain about the cuisine," Billie says as she pulls her boots back on and then turns to grab her red coat. That's going back on, too, after another bout of brushing off dry mud. "You want to help me haul this back? I figure you can either bag up the rabbits or get the fish. Doesn't matter which to me."