No, it's not. It's a military temple, so it's not devoted to a single god. The general alignment within the temple is LN, though priests of different alignment or gods can pray there.<br/><br/>As far as I know, Trieste wants spontaneous healing, which automatically means she won't be praying to Hextor.<br/><br/>Muse is rolling an arcanist. As for his background, he worked with Rennell on at least one earlier mission, and since Rennell could use an arcanist, he sent one of his men for him. Muse will meet you in the inn, so don't leave the place until he's there :P