"Nothing; only I shall swim for it if the worst comes to the worst. I suppose you can't swim under water at all?"
I did not answer his question. I scarcely heard it: cold beads were bursting through my skin.
"Why should the worst come to the worst?" I whispered. "We aren't found out, are we?"
"No."
"Then why speak as though we were?"
"We may be; an old enemy of ours is on board."
"An old enemy?"
"Mackenzie."
"Never!"
"The man with the beard who came aboard last."