During World War 2, Jews in Europe were forced into hiding to avoid German labor and death camps. Most hideouts were tiny and uncomfortable: a barn, an attic, a basement, or even the space under a floorboard. but in the book, Corrie Ten Boom,
they built an extra wall that looked regular with a tiny door to go inside. it was in Corrie's Room because that was at the top of the house sort of and it was the farthest from the front door.