In Azure, now I'm fully convinced the other co-conspirator is Grimwood. I'm wandering around Crossbell before the infiltration of Orchis Tower. Pete told us that Grimwood just so happened to be at Orchis Tower when all this went down, so now he's "stuck" there. Then I visited the graveyard at the church, and the caretaker was standing at the grave of the family Grimwood lost in an "accident" 15 years ago. That basically gives him the same motivation as Arios, and I think Lloyd picked up on it immediately, too.