"Now, all you have to do is just to knock the ends of the beams off their ledges.

The bit we have cut out will fall down, and you will be able easily enough to lift the hatchway from its place.

It is no great weight now.
"It will do capitally," Harry agreed, "and when it floats the tarpaulin will certainly be three inches above the water.

Yes, I have no fear of that part of the adventure going wrong.

You don't think that it will be noticed from the shore, Adolphe ?" "Not it," Adolphe answered confidently.