No more was said, the men easing off out of the way as bale after bale was brought and planted in threes, so that when six had been placed there was a fine breast-work, which formed a splendid protection for those in the stern, and this was added to, until we were fairly safe from enemies behind.  But once more we could hear them creeping nearer through the bushes on our right; the firing grew more dangerous, and there was nothing for it, I felt, but to order every man in the two boats to take his piece, shelter himself behind the bales, and help to beat the enemy back.