Neither youth spoke to the other, although they walked very close to each other. As Burke scrutinized their actions he saw a young girl, tastefully dressed in a black velvet suit, with a black hat, turn about excitedly. She looked about her, as though in alarm, and her face was distorted with pain. Baxter gave her a shifty look and followed her. Craig had been close at her side. Burke drew nearer to the girl. She seemed to falter, as she walked, and it was apparently with great effort that she neared the door of the big department store. Baxter was watching her stealthily now. "Oh!" she exclaimed desperately and keeled backward. Baxter's calculations were close, for he caught her in his arms. "Quick! Quick!" he cried to the big uniformed carriage attendant at the door. "Get me a taxicab. My sister has fainted." The man whistled for a machine, as Burke watched them. The officer was calculating his own chances on what baseball players call a "double play." Craig was close behind Baxter, in the curious crowd. Burke guessed that it would take at least a minute or two for Baxter to get the girl into a machine. So he rushed for Craig and surprised that young gentleman with a vicious grasp of the throat. "Help! Police!" cried Craig, as some women screamed. His wish was doubly answered, for Burke's police whistle was in his mouth and he blew it shrilly. A traffic squad man rushed across from the middle of the street. "Hurry, I want to get my sister away!" ordered Baxter excitedly to the door man. "You big boob, what's the matter with you?" The crowd of people about him shut off the view of Burke's activities fifteen feet away. Baxter was nervous and was doing his best to make a quick exit with his victim. "What's this?" gruffly exclaimed the big traffic policeman, as he caught Craig's arm. "The needle!" grunted Burke. "Here, I've got it from his pocket." He drew forth a small hypodermic needle syringe from Craig's coat pocket, and held it up. "It's a frame-up!" squealed Craig. "Take him quick. I want to save the girl!" exclaimed Burke, as he rushed toward Baxter. That young man was just pushing the girl into the taxicab when a middle-aged woman rushed out from the store entrance. "That's my daughter Helen! Helen, my child!" At this there was terrific confusion in the crowd, and Burke saw Baxter give the girl a rough shove away from the taxicab door. He slipped a bill into the chauffeur's willing hand and muttered an order. The car sprang forward on the instant. "I'll get that fellow this time!" muttered Burke. "He hasn't seen me, and I'll trail him." He turned about and espied a big gray racing car drawn up at the curb. A young man weighted down under a heavy load of goggles, fur and other racing appurtenances sat in the car. Its engines were humming merrily. "Say, you, follow that car for me," sung out Officer 4434, delighted at his discovery. "The taxicab with the black body."