The Excalibur's "murder guns" were about a yard long with a caliber of three inches between the lands. They were loaded with shells exploding on time; it would be murder indeed to leave a score or more of contact shells floating unexploded in space. The rate of fire from these little killers was adjusted from single-shot to ten a second and never a jam from the loading mechanism.
There were intermediate guns as well, but more for their own sake than for any practical use. The twelve-inch shells from these could blow a destroyer out of space, but who ever heard of a lineship fighting a destroyer? However, if the occasion should arise, they were there, about twenty of them scattered throughout the ship, covering every second of curved surface.
Finally there were the Big Guns. These were the reason for building the Excalibur or anything like it. The rest of the ship was designed to service those guns, store their ammunition, shelter the men who worked them, move them about in space, and protect them from harm.
The Big Guns were really big, so there was no need for more than four of them. Two fore and two aft were sufficiently heavy armament for any ship. One of these four happened to be out of commission on Hertford's ship. That, he thought bitterly, would count heavily against him in the fight that was coming.
"Aim gun II, aft," said the commander. There had been no answer from the mocking fighting ship that had suicidally turned on every light it had. The thing was still in plain view. Hertford did not draw nearer or even move for fear he would be spotted. It was enough that he knew where his nameless foe was.
"Fire," said Hertford, "when ready."
From the magazine in the heart of the ship there slid along frictionless runways barrel-like capsules of propulsive burner compound, which consisted of big-moleculed acid and base which combined, in the presence of a catalyst, and released monstrous clouds of gas in the fraction of a second. Following the capsules there slid the Shell, approximately the size of a three-story suburban villa.
Loading machinery, that looked as though it could be utilized in off moments to build universes, fitted the shell into the breech and rammed it home, shoved after it the burner compound that would shoot it on its way.
And all this while, in the quarter of the ship devoted to fire-control, two hundred men had been sighting, resighting, calculating and recalculating at batteries of machines to whom the integraph was as the amoeba is to the mastodon.
The point is this: that Shell couldn't possibly miss, because to avoid it, the colossal bulk of the nameless enemy would have had to begin moving only a second after the order to fire when ready had been delivered. It was violating every rule of warfare, and, the fire-control men were confident, it would not survive the error.
The Gun finally moved on delicately jeweled bearings. This was going to be the most direct hit of all time. Cubic yards of metal locked it in position.
Metallically, over the loudspeaker: "Ready to fire, commander."
The commander: "Then fire!"
There are no words to describe the discharge of a Big Gun and the progress of a Shell through space towards a goal. But that mile-long battlewagon was rocked like a sapling in a hurricane. When the initial shock was over the reeling commander clung to a stanchion and glued his eye to the telescope fixed on the nameless enemy.
It still glowed with lights; it still seemed to be a shade bigger than the Excalibur. The feelings of the commander, subtly schooled to brutality and murder, were mostly of exultation as he saw the Shell enter the field of the telescope. Now, he thought, they would be frantically dashing about as it drew nearer and desperately trying and trying to move a mass that could not be moved in less time than it would take the Shell to contact it and explode.
Two seconds …one second …half—quarter—eighth—
"What the hell?" asked the commander with a childishly hurt air. He scratched his head, and as he scratched it his lineship, the Excalibur, disintegrated in a tangled, pulverized hell of metal, plastic, flesh, bone, Miss Beverly deWinder, two hundred fire-control men, operating crew of a thousand, half that number of marines and Commander Alexander Hertford III. They never knew what hit them, but it was their own Shell.
4
New Metropole, capital of Earth and, before the Navy took over, capital of the All Earth Union and Colonies, was being pacified. This is done by lighter-loads of marines and fighting sailors who descend from a lineship hanging ominously over the most highly populated portion of the city. The lineship itself does not descend because an uncalled bluff is worth more than a called one and because the battlewagons cannot land from the moment they are launched to the moment they are scrapped except in graving docks, and the nearest to Earth was at Alpha Centauri.