"Come quick, come quick, we're adrift!" It was the voice of the Codfish. Now Lewis joined in: "Quick, quick, we are adrift!"

Frank and Jimmy sprang to the higher rocks and made for the boat, slipping, stumbling and rolling. They could not in the darkness see where they were going, and in the scramble they bruised their knees and tore their hands. The barnacles cut Frank's bare feet, but he dashed on in the direction of the cries. Jimmy was close on his heels and the others straggled behind, vaguely aware that some new trouble had come to crown their misfortunes of the night.

What they worst feared from the shouts of the boys on the boat was only too true. In some manner the tugging at the boat of wind and tide had loosened the knot Jimmy had put in the painter, and the Black Duck was moving swiftly away from the rock with the two boys aboard, borne on the bosom of the tide. When Frank reached the place where they had left the boat moored, only the dim outline of the Black Duck was visible, and in a moment even that was lost to view. For a few minutes the shouts of the Codfish and Lewis could be heard, but soon those, too, died out, except when brought faintly in the lulls of the rising wind.

"There goes our hope of safety," said Frank. "Now we are in a pretty fix, and no mistake."


CHAPTER VIII. A SWIM FOR LIFE.

"We're in for it now!" said Jimmy in a voice which trembled in spite of himself. And indeed it looked bad for the four boys, trapped on a barren rock soon to be covered by the swiftly rising tide. "It's all my fault," he continued. "I thought I tied her fast. I'm going to be the means of drowning all of us. Oh, dear! Oh, dear!"

Peters was in a state of collapse. He had sunk down on a boulder too indifferent to notice that his feet were in the water. What did it matter now? They had no chance for their lives. "Let's call for help," he cried, as none of the boys had moved, and raising his voice he shrieked: "Help! Help!"

Out there the wind which was blowing in from the sea, bearing with it little wisps of night fog, carried his words away. There was not even a cheering echo. Apparently the others were too much discouraged at the outlook even to cry for help. In the silence that followed each of the boys could hear his heart beat above the lapping of the waters.