“'I dare say you are right, lad; it must be a terrible position for a man to be in; but you see the law can make no distinctions. If it wasn't thoroughly understood that if a man took up the life of a pirate, whether willingly or unwillingly, he would assuredly be executed if he was caught, we should have the sea swarming with pirates. Now, lad, you know how this boom was fastened; can you suggest any way that we could get over it or loosen it without giving the alarm?' “'There is no way, sir. One end is fastened by a big chain which is fixed to a great shackle which is let into a hole in the rock and fastened in there with lead; that's the fixed end of the boom. The other end, which is swung backward and forward when the ships go in port, has got a big chain too. It goes under an iron bar which is bent, and the two ends fastened in a rock. When they want to fix the boom the end of the chain is passed under this iron loop and then fastened to some blocks and ropes worked from the battery above, and the end of the chain is drawn up tight there, so that there is no loosing the chain till that battery is taken.' “'And you say the guns of the lower batteries at the inner point sweep the entrance?' “'They do, sir. There are ten of them on each side, twelve pounder carronades, which are always charged, and crammed up to the muzzle with bullets and nails and bits of iron. The batteries on the top of the cliff at the entrance are the heaviest metal. They have got twenty guns in each of them. They are loaded with round shot to keep a vessel from approaching, though of course they could fire grape into any boats they saw coming in.' “'This does not seem an easy business by any means, Mr. Earnshaw,' the captain said. “'It does not, sir,' the lieutenant agreed in a dubisome sort of way; 'but no doubt it can be done, sir--no doubt it can be done.' “'Yes, but how?' the captain asked. 'You will be in command of the boats, Mr. Earnshaw, and it will never do to attack such a place as that without some sort of plan.' “'What is the boom like, my lad?' the lieutenant asked; 'is it lashed together?' “'No, it is a solid spar,' I said. 'The entrance is not more than forty feet wide, and the boom is part of the mainmast of a big ship.' “'It seems to me,' said the lieutenant, 'that the only way to get at it would be to go straight at the boom, the two lightest boats to go first. The men must get on the spar and pull the boats over, and then make a dash for the batteries; the heavy boats can follow them.' “'It would never do, Mr. Earnshaw,' the captain said. 'You forget there are twelve guns loaded to the muzzle with grape and musketballs all trained upon a point only forty feet across. Would it be possible to land just outside the boom, lad, on one or both sides, and to keep along the edge, or wade in the water to the batteries?' “'No, sir, the rock goes straight up from the water both sides.'