The one commanded by Mr.Carr managed to remain within hailing distance of the captain's gig, but the other seemed to have disappeared.

A feeling of gloom settled down over the castaways.
It must have been about the middle of the night that Bob, working his way aft to get a drink of water from one of the casks, stumbled over part of the sail that was folded in the bottom of the gig.

He put out his hands, instinctively, to save himself, but, as there was nothing to cling to, he only grasped the air.
Then, with a cry of terror which he could not suppress, he plunged overboard and was soon struggling in the water.
He went down, but, being a good swimmer, he at once began to strike out, and as he got his head above the surface and shook the water from his ears, he heard one of the sailors cry: "Bob's overboard!" "Bob! Bob! Where are you ?" shouted the captain.

"Here's a life-preserver!" The boy heard a splash in the water near him and struck out for it.
"Back water!" he heard the captain cry.
"Aye, aye, sir!" replied the sailors heartily.
At the same time the captain shouted to Mr.Carr's boat word of what had happened.

Bob was weighted down by his wet clothes and he felt he could not long keep up, but he was swimming strongly, hoping every moment one of the boats would pick him up.
"Here I am!" he shouted, but his voice did not carry far above the wind.