"Please don't stop, nor look around," it said, and the owner caught up with him now in the shadow. "But will you kindly let me walk beside you for a moment, till you can show me how to get out of this dreadful place? I am very much frightened, and I'm afraid I shall be followed. Will you tell me where I can go to hide?"

After an instant's astonished pause, he obeyed her and kept on, making room for her to walk beside him, while he took the place next to the tracks. He was aware, too, of the low rumble of a train, coming from the mouth of the tunnel.

His companion had gasped for breath, but began again in a tone of apology: "I saw you were a gentleman, and I didn't know what to do. I thought you would help me to get somewhere quickly."

Just then the fiery eye of the oncoming train burst from the tunnel ahead. Instinctively, the young man caught his companion's arm and drew her forward to the embankment beyond the bridge, holding her, startled and trembling, as the screaming train tore past them.

The pent black smoke from the tunnel rolled in a thick cloud about them, stifling them. The girl, dazed with the roar and blinded by the smoke, could only cling to her protector. For an instant they felt as if they were about to be drawn into the awful power of the rushing monster. Then it had passed, and a roar of silence followed, as if they were suddenly plunged into a vacuum. Gradually the noises of the world began again: the rumble of a trolley-car on the bridge; the "honk-honk" of an automobile; the cry of a newsboy. Slowly their breath and their senses came back.