i felt safe and hidden and snug , and when it was all finished ( after i had swept all the leftover bits of cardboard and tubing into a tidy pile beside the dismounted mirror in the closet and slid the closet door shut ) ; i turned off the light , took off my clothes and sat on the edge of my mattress in my boxers , gazing at the box , its dark bulk clearly discernable in the deeper darkness of the room .