had an X-ray eye, I might have seen his two companions on the
other side of the wall, peering over as they had been before and
showing every evidence of annoyance at my interference.

The man resumed his questioning of Elaine regarding the torpedo
and she replied guardedly, as in fact she could not do otherwise.

Suddenly we heard shouts on the other side of the wall, as though
some one were attacking some one else.

There seemed to be several of them, for a man quickly flung
himself over the wall and ran to us.

"They're after us," he shouted to Bailey.

Instantly our visitor drew a gun and followed the newcomer as he
ran to get out of the garden in the opposite direction.

Just then a tall, well-dressed, striking man came over the wall,
accompanied by another dressed as a policeman, and rushed toward
us.

. . . . . . .

The car bearing the mysterious stranger, Del Mar, kept on until it
reached New York, then made its way through the city until it came
to the Hotel La Coste.

Del Mar jumped out of the car, his wet clothes covered completely
by the long coat. He registered and rode up in the elevator to