Had they looked behind, they would have seen a third shadow, not far in the rear; a strange, uncanny shadow — one that apparently had no right to exist; for no human being was visible beside it.

The men reached a house, and entered. When they had gone in, the shadow that had kept pace with them suddenly disappeared. It melted into the shadow of the house, and its presence was no longer evident.

Those who followed had, in turn, been followed.

They had been traced by The Shadow!

CHAPTER XIX

THE GHOSTS OF DEATH ISLAND

THE first three days at Death Island had been uneventful ones for Harry Vincent. His strange introduction to the men who lived there had been followed by very prosaic reality.

He was lodged in an upstairs room on the second floor; and it appeared to be a typical room of the house.

The downstairs portion of the building was quite ordinary — with the exception of Professor Whitburn’s study, which was simply the working room of a very eccentric man.

Harry had quickly become accustomed to the routine of the place. He had met the other member of the group — Marsh — and had found him to be quite as unusual as Crawford and Stokes. In fact, Marsh was more unusual.