Oddities all around: There should be some reason why the compass deemed Farhad as the way to their goal.
Absurd, hateful even. Oh how much Arbood wanted to kill this man and find the reason. But emotions are weaknesses that he can't afford at the moment. The goal of the Dragon Guardian Vesta was paramount to this measly emotion. Arbood was ready to bow his head toward his enemy if it meant achieving her goals.
'But once it's done...' And once that goal is achieved, even Arbood plans to do everything in his power to end this monster.
Though while Arbood had such thoughts, the world around him trembled for a bit. And it was not the vibration of an earthquake that might be part of this scenario, but the very scenario itself flickered a bit, causing the weaker dwarves some pain.