Used quest item on eyeball shrine and see that target mob is spawned inside wall. Walked all around wall, there's no destructible walls, entrances or levers. Use brimstone potions near him and hear the sound effect that he is taking damage. When he dies, game freezes and must be killed. RotDG is installed. Edit: Found a mass destruction arrow a few floors down. Took it back and was able to carve away the wall from the boss. When I killed him the game did NOT crash. This means the crash was related to him dying in the wall. This was probably obvious, but I wanted to remove all doubt.
