I'm not one to worry about spoilers. While a good story is something I mildly enjoy, I would like to get him back. If you need to reply privately to prevent spoilers to others, please do so.
In the overgrown temple is a room you access by pushing a button. An undead comes out the sarcophagus in that room and talks to you. Later he appears at your camp by the water. You can talk to him and pay 200G to revive a fallen party member.
