Last two books I read were Unclean by Richard Lee Byers and just finished Gossamer Plain by Thomas Reid. Have a few more WoTC books to read , but in between been reading Fiona McIntosh, very Robin Hobb like.
It is a shame really, hopefully they can get him back before the series ends to tie up that loose end. Other then that I think these last few episodes have been great. Maybe Ben just has multiple personalities and that is who Jacob is. That was my first thought.