Let them think you are wrecked, helpless to escape, and they will be more careless.

You men there, loosen your guns, and be ready to scale a ship's side in a jiffy, but lie perfectly still until I give the word." He turned his head.
"You understand what you are to do, Craig, you and the lady ?" "I think so.

We are to obey Henley's orders, and go on board." "Yes, but do something as soon as you reach the deck to attract attention, and get them away from the rail.

Try and get the lady as far astern as possible, for there is likely to be some fighting.

Are you frightened, miss ?" "No," although her voice trembled from excitement.