At that instant a limousine whirled into Fifth Avenue, traveling fast, and ground to a stop under the ape. "What's this?" cried Bentley. "That's Saret Balisle's car," said Tyler. "There's nobody in it but his chauffeur. The fool! Does he think he can take his master away from the ape singlehanded?" "That looks like foolhardy loyalty, but I'm not so sure that it's Balisle's chauffeur at the wheel. Tyler, send somebody down to wherever it is that Balisle parks his car." - - - But before Tyler could move to obey, the anthropoid ape made his surprise move, and did a thing which no ape would have thought of doing. He hurled Balisle toward the limousine. The somersaulting body struck the roof of the car, crashed through the fabric, and dropped into the tonneau. At the same instant the limousine leaped to full speed ahead. A shower of bullets smashed windows and scored deeply and menacingly the brick walls all around the giant anthropoid which for a second still crouched on the second-story ledge. The ape whirled and crashed through the window at his back. "Tyler, send half a dozen cars after that limousine. They simply have to catch it. But they mustn't fire for fear of killing Balisle. Have the car followed right to Barter's hideout. The men in this building will scatter at once through the building. We must trap that ape!" The whole police organization was in a turmoil. Sirens screamed as police cars flashed after the fleeing limousine which carried Saret Balisle away. Doors slammed and windows crashed as two score policemen scattered through the building, armed with riot guns and pistols, seeking the ape. Tyler, after barking the staccato orders which set his men in motion, turned to Balisle's secretary. "Quickly, the number Balisle calls when he wants his automobile sent around." The girl gave it, and Tyler called the number. "Are Mr. Balisle's car and chauffeur there?" he asked. He swore explosively and hung up the receiver. "Another killing," he said. "Balisle's car is gone and the garage people have just found his chauffeur, almost ripped to pieces, in another car left at the garage for storage. "That means this ape is armed with metal fingernails, just like the one that killed the insurance man in the Flatiron Building. That means he'll be doubly dangerous when caught. The murdered chauffeur will have to wait for a few moments while we capture the ape." - - - Shouts and shots rang through the Clinton Building. The ape was going wild, crashing through doors and windows as if they weren't there. His mad bellowing sounded terrifying in the extreme, so deep and rumbling that the air seemed to tremble with its menace. But in the end there came a chorus of triumphant shouts which told that the giant ape had been surrounded.