Just incase this was happening to anyone else, when you have the Embrace the Night Mother at the sanctuary when the Imperials are attacking, the screen will go black and you will hear water, i tryed this many times and diffrent ways. Alot of the time it will seem like the game out right freezez. I just wanted to let people to know you can wait in the Coffin usually waiting 12 hours will continue the story. This stumped me for a while also. I belive this is intentional because the black screen never left for me unless i done this. After the Night Mother tells you to sleep.