“Effectively,” she agreed. “The nav blocks have stored holomaps of every important ocean and littoral environment in the world. Our sensors simply place us into context on those maps. Of course, some of the most interesting holomaps are useless now because the harbors and ports in our records haven’t been built yet—a pity really, since we may be visiting a few of them. We’ve already edited Pearl’s map to correspond to local conditions.”

The Havoc’s captain brought up a cutaway hologram of the submarine itself. “This class of submarines replaced the old Collins-class boats, which came into service in the nineteen nineties,” explained Willet. “They utilize the same teardrop hull shape and X rudder arrangement. They’re much bigger, though. Eight and a half thousand tonnes. Ninety-five meters in length, with a twelve-meter diameter—that’s about three hundred feet by forty feet to you.”

As she spoke, the ghostlike submarine underwent a rapid series of inversions and optical modifications, its gray sharklike skin melting away from one end of the cigar-shaped hull to the other. Various decks and sections detached themselves and grew larger in a separate quadrant of the hologram field. Nimitz and Fraser watched, enthralled, as a chunk of the foredeck disengaged itself and twisted in space to reveal a forest of rockets.

Willet continued. “All the extra real estate accommodates a vertical launch missile system on the forward deck and eight torpedo tubes in the bow. The tubes can launch torpedoes, of course, antiship missiles, mines, or miniature submersible vehicles for special operations work. The vertical tubes carry a full suite of much heavier sea surface and land-attack munitions, all delivered by extended range cruise missile. All sensors and weapons are totally integrated via a Nemesis Two quantum array battlespace management system, so that each of those delivery options, eight tubes and a dozen missile silos, can independently engage a separate enemy in separate theaters.”

“Do I understand you correctly, Commander Willet,” he asked quietly. “Your submarine can attack multiple targets at sea and on land at the same time, over great distances?”

“It could, if we had satellite coverage. But we don’t. Still, even with our reduced capacity, in this antique environment, we could sink every capital ship in the Japanese navy before they even realized their cocks were on the chopping block.”

Nimitz frowned at the obscenity, but he let it pass without comment. He let his eyes drift over the bridge crew and their equipment. Each crewmember was stationed at a glowing screen, which they occasionally brushed with their fingertips, sometimes to no discernible effect and sometimes with obvious consequences. Nimitz watched as one young seaman danced his fingers over a screen that pulsed and flowed with different colors and shapes under the caress.

“At least I recognize that,” he smiled, indicating the periscope.

“We still use it,” said Willet, “but not much. We do most of our business via the bloc.”