“I COME IN,” SAID THE angry man, and did. Mooney slammed the door behind him. Too bad, but he couldn’t keep it open, even if it was conceding a sort of moral right to enter to the stranger; he couldn’t have all that cold air coming in to dilute his little bubble of warmth. “What the devil do you want?” Mooney demanded. The angry man looked about him with an expression of revulsion. He pointed to the kitchen. “It is warmer. In there?” “I suppose so. What do—” But the stranger was already walking into the kitchen. Mooney scowled and started to follow, and stopped, and scowled even more. The stranger was leaving footprints behind him, or anyway some kind of marks that showed black on the faded summer rug. True, he was speckled with snow, but—that much snow? The man was drenched. It looked