"A friend of mine'll follow him home tonight", Tiny said, "to get me the address. He's on the four to twelve. Around one, I'll put on a ski mask and go to that guy's house and put his head in his holster." "A ski mask," Dortmunder echoed. He was thinking how much good a ski mask would do to disguise this monster. In order to be effectively disguised, Tiny would have to put on, at a minimum, a three-room apartment."