still awake as laura walked past his bed in her striped boys pajamas in the dark and gently closed the door to the nursery that hed turned into a library that was now lauras room as she slept on the daybed built into a notch between the wall-to-wall floor-to-ceiling shelves , as she turned on the light behind the closed door , then reopened the door just a crack in case he cried out in the night .