"I know that, but the sea is unusually calm, and there isn't the slightest danger."

"Not just now, but there's no saying when a blow may come up that will swamp me before I can run to cover."

"I have no wish to ask you to go into danger and will only request you to push out as far as you are willing."

George must have known something of the youth who had hired him, that he was the son of a very wealthy father, and willingly paid a high price for one's services. The boatman scanned the sky and different points of the compass. So far as he could judge, the weather would remain fair for hours to come. In the hope of heartening him Chester said:

"With your boat capable of making twenty miles an hour, you can turn back whenever you think best and run into one of the many harbors in half an hour."

"True enough," grinned George, "if I'm within reach of 'em. I don't mind trying it a little while longer, but not for many miles."

He slowed down, for the spray dashed over the wind-shield, and it was plain the swells were increasing, or rather the boat was plunging into a region where they were growing larger.

The chums did not say anything to him for a considerable time. He could tell them nothing more and they ought not to distract his attention. They were in a fever of dread, for never before had the outlook been so gloomy for Mike Murphy. The youths even hesitated to speak to each other, for neither could say anything of a cheering nature. Alvin picked up the binoculars and rising to his feet and steadying himself as the prow rose and dived, carefully scanned the far-reaching half circle of the Atlantic. The form of a brig dimly observable by the naked eye, as it headed toward Pemaquid Point, was brought out with a distinctness that caused an exclamation of surprise.

"What a fine instrument! It equals those our government buys from Germany for the use of the army and navy. Chester, look at that fishing boat toward Inner Heron Island."

His companion stood up, balanced himself, shaded his brow and wrinkled his forehead with the strain of the attempt.