So i was reading one of the chapters with Zahel, and when he said "He half expected a voice to talk to him, but of course there wasn't. There hadn't been one in ages," (paraphrased), I first thought that he was a Radiant, but then i thought, could he actually be Vasher, and that voice be Nightblood? I haven't finished Warbreaker, but from reading a few posts, I've gotten the idea that Vasher left the planet.
So, could Zahel be the Warbreaker? Please tell me if I'm right or just being stupid.
Thanks!