However, I wouldn't put much stock in that, since he's previously disclosed his plans for only one nine-themed canonical entity to exist in the multiverse. Having one of the nine-themed groups only out of the way instead of destroyed would potentially complicate his plans later on. It is more likely that he lured them all into a single building under false pretenses, probably some sort of fortress out in the woods where no locals would be around to investigate any strange sounds, with all of the Divines unaware that the mysterious person who had brought them together for a discount vacation was the same person who had rigged the entire fortress to explode. Huinesoron wouldn't want to have to deal with any loose ends or deific wild cards.