Well, I think the idea of a guardian daemon is cool, but the execution may just be a little overpowered. And if a smart enemy works out he only protects her, nothing more, then the attacks may be directed against everyone else. And Ellen is hardly a Blood Dragon. And if he's captured she's extremely vulnerable. but still it'd be a change from all the powerful characters. Maybe she also needs some ability of her own (brains, if not physical or fighting ability, perhaps). I'm just not comfortable with a character with that kind of bodyguard, but is extremely, well, not useful without her bodyguard.