The backs of their heads were hollowed out; their faces were nothing but thin masks at the front. Within each hollow a candle was burning. This was so plain to him now, that he wondered he had never noticed it before. He imagined what would happen if he went down into the street and blew some of the candles out. It made him laugh to think of it. He laughed so much that he could no longer stand. His laughter echoed round and round the house. Some small remaining shred of reason warned him that he ought not to let the landlord and his family know what he was doing so he went to bed and muffled the sound of his laughter in the pillows, kicking his legs from time to time with the sheer hilarity of the idea.