This is the only screeny i took when I encountered one last time. look for small half building guarded by skeletons he will be asleep looks like a pile of stones if you go near him once you kill his guards he stands up. Loot his chest later
https://steamcommunity.com/sharedfiles/filedetails/?id=2434977997
drops this trophy I used it for a lamp
https://steamcommunity.com/sharedfiles/filedetails/?id=2435022164