Livable?

Along with the furniture, there was abed whose springs were coming out from different places. Soon he found that somebody lived here before and left the room leaving behind all his stuff. But why? The walls weren’t painted and you could see bricks on the walls. The flashlight caught a glimpse of a secret hideaway. Christopher couldn’t link a hideaway inside a secret room that too inside a mine. The curiosity made him moved towards the hideaway and he went inside it holding his flashlight in his mouth, but it was empty. Disappointed he turned back towards the room and t was then he saw something that was written on the brick wall. He was completely shocked, the flashlight fell from his hand and it was all dark in front of his eyes. He picked up the flashlight to read it again. What was written on the wall that shook him to the core?