I don't know if you're familiar with Batman, and Batman Begins, but I'm beginning to think they might find a bit of a challenge in taking on Ra's Al Ghul. He's functionally immortal, so once they're done with him they can chuck his corpse into a Lazarus Pit and he'll be ready for more fun the next morning...

Herbert's rather annoyed, since he's the one bleeding all over the bed while dad is frozen at the door to the inn. I can relate to his irritation, really.