She nodded, more nervous than excited. “What’s wrong?”
“I’ve been thinking about these pirate ships. And the danger to MC 2. He’s heavier than water.”
“You mean if he goes overboard during an attack?”
“Yes. He can swim…if he’s close enough to land, he can get back. But if it’s too far-”
“He’ll sink to the bottom.”
“Actually, he doesn’t need oxygen. He could sink and walk to shore. But again, he has to be close enough not to use up all his energy first. And walking through water would drain his energy much faster than ordinary walking.”
“If he’s lost on the bottom, we’d never find him.”
“No. But when the right time comes, he’ll still explode with the same force, wherever he is on the seafloor.”
The next morning after a rather spare breakfast, Rita again stood by the rail with MC 2, staying out of the way of the buccaneers. Everyone was excited. As dawn had broken over the sea, they had spotted a Spanish merchant ship on the horizon. Rita watched it all morning, realizing for the first time how painfully slow the race between the ships would be.
“This feels like it will take forever,” said Rita. Then she wondered if she could engage MC 2 in conversation while Roland was up in the rigging helping to sail the ship.
“Tell me why these two ships sail at different speeds.”
Under the Second Law, MC 2 did not hesitate.
“Both ships are using the same wind for power out in the open sea. The only difference in their speed comes from the design of the ships and the weight they carry. Occasionally, one ship might move into a fast-moving current before the other, also giving it an advantage.”
“Thank you.” Rita smiled, pleased that getting the robot to talk was so simple. “Your eyesight must be better than mine. Tell me what you can see about that ship up there.”
“By the name on its side, it is the Cadiz. That name suggests that it is Spanish. It is riding low in the water, obviously full of cargo. Also, from the shape of the ship I can see above the waterline, I infer that the shape of the hull below the water is wide and bulky. This creates more resistance against the water, slowing it down.”
Rita knew he was correct. “Is there any chance it can get away?”
“By its own actions, I do not believe so. However, the sailors on our ship could conceivably make a mistake in their handling of the rigging or their calculation of the changes in the wind. Also, of course, the sails and rope on this ship are in various conditions. Any unexpected problem, such as broken rigging or torn sails, could affect the accuracy of my prediction.”
“Or a change in the weather.”
“I detect no atmospheric alterations that signal a coming change,” said MC 2. “But in principle of course, even a small storm could separate the ships.”
“Realistically, then, we’re going to catch the Cadiz,” said Rita.
“Yes.”
“How long will it take, under present conditions?”
“Approximately six hours.”
“Six hours?” Rita watched MC 2 for a moment before looking out across the sea again toward the Spanish ship. Of course, from the perspective of her own time, the Hungry Hawk had either caught the Cadiz on this voyage or it had not; everything the buccaneers did, at least without the influence of the time travelers, was already decided. That left her wondering what MC 2 would do when the pirates attacked the Spanish.
Even a robot, acting alone, could not possibly stop all those humans from harming each other. Rita was no roboticist, of course, but any human of her time knew something of robots and the Three Laws. She decided to instruct him outright to tell her what he would do, even though doing so would reveal her as a human from his time.
“Tell me if the First Law will force you to try to stop the fight.” Rita glanced at the buccaneers nearest them. None was paying attention to them. They wouldn’t understand the entire question, of course, but they wouldn’t like to hear that anyone might want to stop the coming fight.
“I did not know a fight was certain,” said MC 2. “But of course, if you know the Laws, you must have pursued me here. Have you come to take me back?”
“I certainly should,” she said carefully. “You are not to leave my company. That’s an instruction under the Second Law. Understood?”
“Yes.”
“Then tell me what I asked.”
“I suspected a fight would occur, but the buccaneers have talked specifically of taking the ship and the cargo, not of harming humans. I am hoping that the Spanish will surrender without resistance.”
“I wouldn’t count on that,” said Rita.
“Then you must know that the First Law requires that I prevent harm to humans.”
“Changing history could harm them,” said Rita. “Though I’m not sure this little isolated voyage is going to change much of anything.”
“I am not certain what I will have to do,” said MC 2. “I cannot forcibly stop two entire crews of humans from fighting each other.”
“If your interpretation of the First Law will allow it, I instruct you to prioritize protecting Roland and me. Will that be acceptable?”
“I believe so,” said MC 2.
All that day, Wayne sat on a keg by the rail of the Old Laughing Lady, watching the two ships sailing in front of it. One was the Hungry Hawk, of course; he couldn’t read the name of its prey, but he was very relieved it was there. He had been gambling when he had told Captain Tomann that Captain Quinn knew of a merchant ship. Now he had been vindicated.
Late in the afternoon, the Hungry Hawk closed in on one side of the merchant ship just as the Old Laughing Lady drew near on the other side. Both ships fired their cannon. Huge splinters of wood flew into the air from the sides of the quarry. Gaping holes through the sails of their prey revealed blue sky beyond them. The merchant ship fired back, but it had few cannons and poor aim; plumes of spray rose where its cannonballs struck the water.
By that time, of course, all three crews were armed and anxious. Captain Tomann was striding up and down the deck shouting threats at the Spaniards, waving his cutlass angrily. Most of his crew had massed on one side. The front line eagerly waited with grappling hooks on ropes as the helmsman steered the ship into position alongside the Cadiz. The rest were armed with boarding pikes, cutlasses, rapiers, and flintlock pistols or muskets.
Wayne stayed where he was as the shouting buccaneers on each pirate ship grappled with the Spanish ship only moments apart. Shouts roared on all sides as the buccaneer crews leaped onto the merchant ship, waving their weapons. The snapping of muskets and pistols threw puffs of smoke into the air. As some men screamed and fell into the water, Wayne gripped the rail, searching the crew of the Hungry Hawk for MC 2.
The Spanish crew, outnumbered and surrounded by buccaneers, did not put up much of a fight. They were quickly disarmed and hustled to one side, under guard. In only moments, however, the two buccaneer crews were facing off, yelling at each other and threatening to fight.
Amidships, Captain Tomann was bellowing at Captain Quinn, slashing at the air with his cutlass. Captain Quinn, holding his own bloody cutlass, was shouting back at him. Their men were not preparing to fight behind them, however; they were too busy looting the ship and getting into individual fights.
Finally, through the confusion aboard the Cadiz, Wayne saw MC 2 on the far side, still on the Hungry Hawk. He was standing protectively near a young buccaneer; they had apparently not left the Hungry Hawk to join the fight at all. Wayne leaped up and ran to the nearest spot along the rail where he could climb across to the Cadiz.