Moments later he stood in the street and there were tears swimming in his eyes. "Helen!" His voice was a pleading whisper. "Helen, honey, where are you?" There was no answer but the pitiful palpitation of utter silence. And then, there was movement at Dave Miller's right! Something shot from between the parked cars and crashed against him; something brown and hairy and soft. It knocked him down. Before he could get his breath, a red, wet tongue was licking his face and hands, and he was looking up into the face of a police dog! Frantic with joy at seeing another in this city of death, the dog would scarcely let Miller rise. It stood up to plant big paws on his shoulders and try to lick his face. Miller laughed out loud, a laugh with a throaty catch in it. "Where'd you come from, boy?" he asked. "Won't they talk to you, either? What's your name, boy?" There was a heavy, brass-studded collar about the animal's neck, and Dave Miller read on its little nameplate: "Major." "Well, Major, at least we've got company now," was Miller's sigh of relief. For a long time he was too busy with the dog to bother about the sobbing noises. Apparently the dog failed to hear them, for he gave no sign. Miller scratched him behind the ear. "What shall we do now, Major? Walk? Maybe your nose can smell out another friend for us." They had gone hardly two blocks when it came to him that there was a more useful way of spending their time. The library! Half convinced that the whole trouble stemmed from his suicide shot in the head—which was conspicuously absent now—he decided that a perusal of the surgery books in the public library might yield something he could use. That way they bent their steps, and were soon mounting the broad cement stairs of the building. As they went beneath the brass turnstile, the librarian caught Miller's attention with a smiling glance. He smiled back. "I'm trying to find something on brain surgery," he explained. "I—" With a shock, then, he realized he had been talking to himself. In the next instant, Dave Miller whirled. A voice from the bookcases chuckled: