I'm in Cathedral 1 on Nightmare mode. I need to search for signs of Deckard Cain. I've searched the whole map twice (yes I reloaded the game to get a new map) and both times I've found neither signs of Deckard Cain nor an entrance to Cathedral 2.
Is there something I'm missing? I've explored the entire map several times. And then reloaded map and searched it again several times. No joy.