'Look, Grandpa!' cried Charlie. 'There's a door in the wall!' It was a green door and it was set into the wall of the tunnel just above the level of the river. As they flashed past it there was just enough time to read the writing on the door: STOREROOM NUMBER 54, it said. ALL THE CREAMS — DAIRY CREAM, WHIPPED CREAM, VIOLET CREAM, COFFEE CREAM, PINEAPPLE CREAM, VANILLA CREAM, AND HAIR CREAM.