Quickly he wrote a note and read it over: "Install submarine bell in place of these clumsy tubes. Am having harbor and bridges mined as per instructions from Government. D."
He unscrewed the cap at one end of the tube, inserted the note and closed it. Then he pushed a button on his desk. A panel in the wall opened and one of the men who had played policeman once for him stepped out and saluted.
"Here's a message to send below," said Del Mar briefly.
The man bowed and went back through the panel, closing it.
Del Mar cleaned up his desk and then went out to look his new quarters over, to see whether everything had been prepared according to his instructions.
From the concealed entrance to a cave on a hillside, Del Mar's man who had gone through the panel in the bungalow appeared a few minutes later and hurried down to the shore. It was a rocky coast with stretches of cliffs and now and then a ravine and bit of sandy beach. Gingerly he climbed down the rocks to the water.
He took from his pocket the metal tube which Del Mar had given him and to the hook on one end attached a weight of lead. A moment he looked about cautiously. Then he threw the tube into the water and it sank quickly. He did not wait, but hurried back into the cave entrance.
. . . . . . .
Elaine, Aunt Josephine and I motored down to Dodge Hall from the city. Elaine's country house was on a fine estate near the Long Island Sound and after the long run we were glad to pull up before the big house and get out of the car. As we approached the door, I happened to look down the road.
"Well, that's the country, all right," I exclaimed, pointing down the road. "Look."