"We'll have to hang on till they do."

Percy could hardly stand upright. His joints ached. His eyelids sagged heavily for want of sleep. He would have given anything if he could have lain down. But that was impossible. Something of his father's doggedness enabled him to set his teeth and stand clinging to the bails.

Their plight was bad enough, but it might have been much worse. Percy shivered a bit as he looked at the wallowing dory and the breaker beyond it.

The buoy could not drift. It could not founder. It afforded them a safe refuge from wind and sea; but it could not give them food or drink.

Particularly drink. Every atom in Percy's body, every corpuscle in his blood, seemed to be crying out for water. It did not seem as if he could endure it. He was almost desperate enough to quench his thirst from the sea. But, no! Men who did that went crazy. He moistened his dry lips with his tongue. If only he could have had a full dipper from the spring behind the camp! And he had turned up his nose because it was brackish!

"Wish I had some of Filippo's hot biscuits!" said Jim. "I can taste 'em now."

"Don't, Jim! It makes me feel worse. How long can a man stand it without eating and drinking?"

"There was a fisherman out of Bass Harbor, last October, who went in a power-boat to Clay Bank after hake. His engine played out and he got blown off by a northwester. For over five days he didn't have a thing to eat or drink. Then he got back to Mount Desert Rock. That's the longest I ever heard of."

Five days! And they had not yet gone two. Percy became silent again.

The night dragged painfully. With mortal slowness the Great Bear circled the Pole Star. Jim was acquainted with the principal constellations, and he ran them over for Percy's benefit. Gradually, however, their conversation lagged. You cannot feel much interest in astronomy when your eyes feel as if they were being pressed down by leaden weights and your stomach is absolutely empty.