The slender man continued to stare. Garth's heart sank, but at last the other straightened with a nod.

"Suppose you take a little stroll with me."

Garth arose and followed him down the aisle. He didn't know whether to interpret that quick command as acceptance or condemnation. He might be going to the work for which he had been chosen, or—and he realized how likely that was—to an execution. Yet he had no alternative. He must follow the slender, sinister figure into dark places not knowing.

They paused on the platform. Garth thought it likely that one of the inspector's men was in the car, but of course the fellow would not confess himself by stepping to the vestibule at their heels. It would be enough for him to know that they were on board and that the train was not scheduled to stop before reaching the Grand Central Station.

Garth knew that, too. Therefore he could not understand why his conductor stooped and with an air of confidence opened the vestibule door and raised the trap. Garth started, for, as if the engineer were an accomplice and had received some subtle signal, the brakes commenced to grind while the train lost its speed rapidly.

The slender man grasped Garth's arm, and, as the train stopped, leapt with him to the right of way and hurried him into the shadows at the foot of the embankment. Any men the inspector might have had on the train had been outwitted.

He saw ahead the red and green lights of an open draw-bridge. He understood now, and marvelled at the simplicity of the trick. Certainly it would not have occurred to the inspector to post his men at the Harlem River where express trains were seldom detained at night. Yet it had been only necessary to send some small boat to loiter in the draw at the proper moment to assure the security of the conspirators.

Immediately Garth lost all sense of direction. The other led a stealthy, circular course through a lumber yard, across a fence, around darkened buildings, and finally onto a small wharf. A craft was moored there—a barge, Garth thought at first. It lay in darkness except for its navigating lights, and, as Garth looked, even these were extinguished.

The slender man glided across the wharf, and, Garth at his heels, stepped to the deck. There he reached over the railing, dropping something from his hand. Garth heard three splashes at regular intervals. A blade of light flashed sharply athwart the darkness and became an open doorway, framing a troubled face.

Garth, shoved from behind, stumbled over the sill into the presence of five men who circled about him, like cats, wary and suspicious. He would know now. One word from his conductor would deliver him to the inevitable judgment of that circle.