Slamming the receiver on its hook Mr. Pauling leaped to his feet.

“It’s Frank!” he cried. “Says Tom’s calling for help from under water. Lord knows what’s up! Send Jameson and a bunch of men. Order a patrol down. Rawlins’ dock, foot of 28th. You know the place. Come yourself, too!”

Jerking open a drawer, Mr. Pauling grabbed up a heavy revolver, shoved it into his pocket, dashed through the door and as he passed the supposed janitor gave a terse order. “Get inside!” he exclaimed, “Henderson needs you.” The next instant he was plunging down the stairs. With a bound he cleared the last few steps, hurtled like a football player through the pedestrians on the sidewalk, leaped into his waiting car and the next instant was violating every traffic law as he drove madly through the streets. Once only did he slacken speed when, as he rounded the corner,

he caught a glimpse of one of his men and with a gesture summoned him. Instantly, the man obeyed, leaped on the running board and as the machine again darted ahead clambered in beside Mr. Pauling.

Before Mr. Pauling’s footsteps had sounded on the stairs, before the secret service man in the janitor’s overalls could dodge inside the room, Mr. Henderson was talking over a private wire to the nearest police station. Ten seconds later, he was rushing downstairs with the erstwhile janitor at his heels and hard on the wake of Mr. Pauling’s car his runabout went tearing in the same direction.

As they swung from Fourth Avenue into 28th St., gaping crowds lined the sidewalks craning their necks and peering down the street where, far ahead, the police patrol was startling the neighborhood with its clanging bell as it followed the lead of Mr. Pauling’s car.

What had happened, what danger was menacing his boy, Mr. Pauling could not guess. But that Tom was in deadly peril he felt sure. Frank’s agonized tones proved that, and while his incoherent,

stammering words carried no explanation Mr. Pauling knew that his son was calling for aid from under the water, that something terrible had occurred. Through his mind had instantly flashed the threat of the bandit chief, the threat to make him sweat blood if he continued his investigations. Could it be that? Had the thugs captured or attacked Tom to injure his father? And where was Rawlins? With nerves already strained from overwork and failure to accomplish what the government demanded of him, Mr. Pauling, who was noted for his self-possession, his calmness and clear-headedness in the most trying and perilous moments, was now mad with fear and his teeth actually chattered with nervousness. His car, racing at break-neck speed, seemed almost to crawl. Every corner seemed to be purposely blocked by traffic. He thought he had never seen so many persons crossing the streets, so many slow-moving, horse-drawn vehicles impeding his progress. He cursed aloud, handled his levers with savage jerks, gritted his teeth and mentally prayed he would not be too late. Now, behind him, he could hear the clanging, oncoming patrol truck—he knew Henderson

had lost no time. Before him lay the end of the street, the river and the docks. With a reckless twist he swung the car into the waterfront street, took the turn on two wheels, drove it diagonally, regardless of cursing truck-men, across the cobbled road, and with squealing brakes, brought it to a skidding stop by Rawlins’ dock. Before it had lost headway he had leaped out, the detective at his side, and as he burst into the boys’ workshop a crowd of blue-clad policemen were jumping from the still moving patrol and were crowding at his heels.

[CHAPTER VII—THE CRY FROM THE DEPTHS]