“If that’s the case, sir, then I don’t have to go on, and you can arrest me. But you surely must know that regardless of what happens, your true strategy, and all of the evidence used to prove my hypothesis, will make the news across the world tomorrow, or maybe even tonight. At the cost of the rest of my life I stand before you today, and I hope that you will value my sacrifice.”

“You may continue,” Tyler said with a wave of his hand.

“Thank you, sir. I am truly honored, and I will not use up too much time.” The Wallbreaker bowed again. A humble respect so rarely seen among modern people seemed to be in his blood, able to manifest at any time, like a noose gradually tightening around Tyler’s neck. “Then, sir, was my rendition of your strategy just now correct?”

“It was.”

“It was not,” the Wallbreaker said. “Sir, pardon my saying it, but it was not correct.”

“Why?”

“Given humanity’s technological capabilities, the most powerful weapons we are likely to possess in the future are super hydrogen bombs. In a space-battle environment, the bombs must be detonated in direct contact with their target to be capable of destroying enemy ships. Space fighters are nimble and can be deployed in large numbers, so sending the fighter fleet in for swarmlike suicide strikes is undoubtedly the best option. Your plan is eminently reasonable. All of your behavior, including trips to Japan, China, and even the mountains of Afghanistan in search of space kamikaze pilots with a spirit of self-sacrifice, and your plan to put the mosquito fleet under your direct control once that search failed, was also entirely reasonable.”

“What’s wrong with that?” Tyler asked, sitting up on the sofa.

“Nothing’s wrong with that. But that’s just the strategy you presented to the outside.” The Wallbreaker bent down, drew near to Tyler’s ear, and continued speaking in a soft voice. “Your true strategy had small alterations. For quite a long time, you had me stumped. It was agonizing for me, and I nearly gave up.”

Tyler realized that he had a death grip on a sofa handle, and tried to relax.

“But then you gave me the key to unlock the whole puzzle. It was such a good fit that for a moment I doubted my good fortune. You know what I’m referring to: Your study of several bodies in the solar system, Europa, Ceres, and the comets. What do they have in common? Water. They all possess water, and in large quantities! On their own, Europa and Ceres have more water than in all of the oceans on Earth.…

“Rabies sufferers fear the water and can go into spasms at the mere mention of the word. I imagine you have similar feelings right now.”

The Wallbreaker drew close to Tyler and spoke directly into his ear. His breath was not the least bit warm, but felt like a ghostly wind flavored with the grave. “Water,” he whispered, as if talking in his sleep. “Water…”