Nathan isn't fond of how fast Dagger's mood changes.  He scowls and then hisses. "Mutant," Nathan says under his breath. "I said mutant," he said louder when Dagger paused. The wheels in his head are turning. "Why don't we settle this like gentleman? In the manner of our kindred, of course. No arms, just the strength and speed accorded to us by the blood gift." That way it wouldn't offend Aleera. Honor is one thing she champions above all else.