User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-117.222.2.200-20141120074624/@comment-24421137-20141120114459

I doubt that that would be the reason Valrie would do it, and I doubt Ravel is dead. I think at the last minute Tiamat was able to save both Ravel and Riser, which is why we are given the big hidden secret about Tiamat, who probably might know where they are. My theory at least.