"All right." The three armor-clad figures stepped into the Boise's open lock, the tractor beam was cut off, and the speedster flashed away from the now stationary super-ship.
"Better let formalities go for a while," Captain Bradley interrupted the general introductions taking place. "I was scared out of nine years' growth when I saw you coming at us, and maybe I've still got the humps; but that Nevian is coming up fast, and if you don't already know it I can tell you that she's no light cruiser."
"That's so, too," Costigan agreed. "Have you fellows got enough stuff so that you think you can take him? You've got the legs on him, anyway—you can certainly run if you want to!"
"Run?" Cleveland laughed. "We have a bone of our own to pick with that ship. We licked her to a standstill once, until we burned out a set of generators, and since we got them fixed we've been chasing her all over space. We were chasing her when we picked up your call. See there? She's doing the running."
The Nevian was running, in truth. Her commander had seen and had recognized the great vessel which had flashed out of nowhere to the rescue of the three fugitives from Nevia; and, having once been at grips with that vengeful super-dreadnaught, he had little stomach for another encounter. Therefore his side-thrust was now being exerted in the opposite direction; he was frankly trying to put as much distance as possible between himself and Triplanetary's formidable warship. In vain. A light tractor was clamped on and the Boise flashed up to close range before Rodebush restored her inertia and Cleveland brought the two vessels relatively to rest by increasing gradually his tractor's pull. And this time the Nevian could not cut the tractor. Again that shearing plane of force bit into it and tore at it, but it neither yielded nor broke. The rebuilt generators of Number Four were designed to carry the load, and they carried it. And again Triplanetary's every mighty weapon was brought into play.
The "cans" were thrown, ultra-and infra-beams were driven, the furious macro-beam gnawed hungrily at the Nevian's defenses; and one by one those defenses went down. In desperation the enemy commander threw his every generator behind a polycyclic screen; only to see Cleveland's even more powerful drill bore relentlessly through it. After that puncturing, the end came soon. A secondary SX7 beam was now in place on mighty Ten's inner rings, and one fierce blast blew a hole completely through the Nevian cruiser. Into that hole entered Adlington's terrific bombs and their gruesome fellows, and where they entered, life departed. All defenses vanished, and under the blasts of the Boise's batteries, now unopposed, the metal of the Nevian vessel exploded into a widely spreading cloud of vapor. Sparkling vapor, with perhaps here and there a droplet or two of material which had been only liquefied.
So passed the sister-ship, and Rodebush turned his plates upon the vessel of Nerado. But that highly intelligent amphibian had seen all that had occurred. He had long since given over the pursuit of the speedster, and he did not rush in to do hopeless battle beside his fellow Nevians against the Tellurians. His analytical detectors had written down each detail of every weapon and of every screen employed; and even while prodigious streamers of force were raving out from his vessel, braking her terrific progress and swinging her around in an immense circle back toward far Nevia, his scientists and mechanics were doubling and redoubling the power of his already Titanic installations, to match and if possible to overmatch those of Triplanetary's super-dreadnaught.
"Do we kill him now or do we let him suffer a while longer?" Costigan demanded.
"I don't think so, yet," Rodebush replied. "Would you, Cleve?"
"Not yet," said Cleveland, grimly, reading the other's thought and agreeing with it. "Let him pilot us to Nevia; we might not be able to find it without a guide. While we're at it we want to so pulverize that crowd that if they never come near the Solarian system again they'll think it's twenty minutes too soon."
Thus it was that the Boise, increasing her few dynes of driving force at a rate just sufficient to match her quarry's acceleration, pursued the Nevian ship. Apparently exerting every effort, she never came quite within range of the fleeing raider; yet never was she so far behind that the Nevian space-ship was not in clear register upon her observation plates.
Nor was Nerado alone in strengthening his vessel. Costigan knew well and respected highly the Nevian scientist-captain, and at his suggestion much time was spent in reenforcing the super-ship's armament to the iron-driven limit of theoretical and mechanical possibility.
In mid-space, however, the Nevian slowed down.
"What gives?" Rodebush demanded of the group at large. "Not turn-over time already, is it?"
"No." Cleveland shook his head. "Not for at least a day yet."
"Cooking up something on Nevia, is my guess," Costigan put in. "If I know that lizard at all, he wired ahead—specifications for the welcoming committee. We're getting there too fast, so he's stalling. Check?"
"Check." Rodebush agreed. "But there's no use of us waiting, if you're sure you know which one of those stars up ahead is Nevia. Do you, Cleve?"
"Definitely."
"The only other thing is, then, shall we blow them out of the ether first?"
"You might try," Costigan remarked. "That is, if you're damned sure that you can run if you have to."
"Huh? Run?" demanded Rodebush.
"Just that. It's spelled R-U-N, run. I know those freaks better than you do. Believe me, Fritz, they've got what it takes."
"Could be, at that," Rodebush admitted. "We'll play it safe."
The Boise leaped upon the Nevian, every weapon aflame. But, as Costigan had expected, Nerado's vessel was completely ready for any emergency. And, unlike her sister-ship, she was manned by scientists well versed in the fundamental theory of the weapons with which they fought. Beams, rods, and lances of energy flamed and flared; planes and pencils cut, slashed, and stabbed; defensive screens glowed redly or flashed suddenly into intensely brilliant, coruscating incandescence. Crimson opacity struggled sullenly against violet curtain of annihilation. Material projectiles and torpedoes were launched under full beam control; only to be exploded harmlessly in mid-space, to be blasted into nothingness, or to disappear innocuously against impenetrable polycyclic screens. Even Cleveland's drill was ineffective. Both vessels were equipped completely with iron-driven mechanisms; both were manned by scientists capable of wringing the highest possible measure of power from their installations. Neither could harm the other.
The Boise flashed away; reached Nevia in minutes. Down into the crimson atmosphere she dropped, down toward the city which Costigan knew was Nerado's home port.
"Hold up a bit!" Costigan cautioned, sharply. "There's something down there that I don't like!"
As he spoke there shot upward from the city a multitude of flashing balls. The Nevians had mastered the secret of the explosive of the fishes of the greater deeps, and were launching it in a veritable storm against the Tellurian visitor.
"Those?" asked Rodebush, calmly. The detonating balls of destruction were literally annihilating even the atmosphere beyond the polycyclic screen, but that barrier was scarcely affected.
"No. That." Costigan pointed out a hemispherical dome which, redly translucent, surrounded a group of buildings towering high above their neighbors. "Neither those high towers nor those screens were there the last time I was in this town. Nerado was stalling for time, and that's what they're doing down there—that's all those fire-balls are for. Good sign, too—they aren't ready for us yet. We'd better take 'em while the taking's good. If they were ready for us, our play would be to get out of here while we're all in one piece."
Nerado had been in touch with the scientists of his city; he had been instructing them in the construction of converters and generators of such weight and power that they could crush even the defenses of the super-ship. The mechanisms were not, however, ready; the entirely unsuspected possibilities of speed inherent