Short Fiction - Fritz Leiber (desktop ebook reader .TXT) 📗

that seemed part of their language. Their gravity-immune ships moved by reaction to photonic jets the tightness of which rendered them invisible except near the sun, where they tended to ionize electronically dirty volumes of space. It was probably this effective invisibility, based on light-control, which allowed them to penetrate the Solar System as deep as Earth’s orbit undetected, rather than any power of travel in time or subspace, as was first assumed. Earthmen could only guess at the physical appearance of the Enemy, since no prisoners were taken on either side.

Despite his impressive maneuverability and armament, the Enemy was oddly timid about attacking live planets. He showed no fear of the big gas planets, in fact hovering very close to their turgid surfaces, as if having some way of fueling from them.

Near Terra the first tactic of the black cruisers, after destroying Lunostrovok and Circumluna, was to hover behind the moon, as though sharing its tide-lockedness⁠—a circumstance that led to a sortie by Earth’s Combined Fleet, England and Sweden excepted.

At the wholly disastrous Battle of the Far Side, which was visible in part to naked-eye viewers on Earth, the Combined Fleet was annihilated. No Enemy ship was captured, boarded, or seriously damaged⁠—except for one which, apparently by a fluke, was struck by a fission-headed anti-missile and proceeded after the blast to “burn,” meaning that it suffered a slow and puzzling disintegration, accompanied by a dazzling rainbow display of visible radiation. This was before the “stupidity” of the Enemy with regard to small atomic missiles was noted, or their allergy to certain radio wave bands, and also before Terran telepaths began to claim cloudy contact with Enemy minds.

Following Far Side, the Enemy burst into activity, harrying Terran spacecraft as far as Mercury and Saturn, though still showing great caution in maneuver and making no direct attacks on planets. It was as if a race of heavily armed marine creatures should sink all oceangoing ships or drive them to harbor, but make no assaults beyond the shore line. For a full year Earth, though her groundside and satellite rocketyards were furiously busy, had no vehicle in deep space⁠—with one exception.

At the onset of the War a fleet of five mobile bases of the U.S. Space Force were in Orbit to Mercury, where it was intended they take up satellite positions prior to the prospecting and mineral exploitation of the small sun-blasted planet. These five ships, each with a skeleton five-man crew, were essentially Ross-Smith space stations with a solar drive, assembled in space and intended solely for space-to-space flight inside Earth’s orbit. A huge paraboloid mirror, its diameter four times the length of the ship’s hull, superheated at its focus the hydrogen which was ejected as a plasma at high exhaust velocity. Each ship likewise mounted versatile radio-radar equipment on dual lattice arms and carried as ship’s launch a two-man chemical fuel rocket adaptable as a fusion-headed torpedo.

After Far Side, this “tin can” fleet was ordered to bypass Mercury and, tacking on the sun, shape an orbit for Uranus, chiefly because that remote planet, making its 84-year circuit of Sol, was currently on the opposite side of the sun to the four inner planets and the two nearer gas giants Jupiter and Saturn. In the empty regions of space the relatively defenseless fleet might escape the attention of the Enemy.

However, while still accelerating into the sun for maximum boost, the fleet received information that two Enemy cruisers were in pursuit. The five ships cracked on all possible speed, drawing on the solar drive’s high efficiency near the sun and expending all their hydrogen and most material capable of being vaporized, including some of the light-metal hydrogen storage tanks⁠—like an old steamer burning her cabin furniture and the cabins themselves to win a race. Gradually the curving course that would have taken years to reach the outer planet flattened into a hyperbola that would make the journey in 200 days.

In the asteroid belt the pursuing cruisers turned aside to join in the crucial Battle of the Trojans with Earth’s largely new-built, more heavily and wisely armed Combined Fleet⁠—a battle that proved to be only a prelude to the decisive Battle of Jupiter.

Meanwhile the five-ship fleet sped onward, its solar drive quite useless in this twilight region even if it could have scraped together the needed boilable ejectant mass to slow its flight. Weeks became months. The ships were renamed for the planet they were aimed at. At least the fleet’s trajectory had been truly set.

Almost on collision course it neared Uranus, a mystery-cored ball of frigid gas 32,000 miles wide coasting through space across the fleet’s course at a lazy four miles a second. At this time the fleet was traveling at 100 miles a second. Beyond Uranus lay only the interstellar night, into which the fleet would inevitably vanish⁠ ⁠…

Unless, Grunfeld told himself⁠ ⁠… unless the fleet shed its velocity by ramming the gaseous bulk of Uranus. This idea of atmospheric braking on a grand scale had sounded possible at first suggestion, half a year ago⁠—a little like a man falling off a mountain or from a plane and saving his life by dropping into a great thickness of feathery new-fallen snow.

Supposing her solar jet worked out here and she had the reaction mass, Prospero could have shed her present velocity in five hours, decelerating at a comfortable one G.

But allowing her 12,000 miles of straight-line travel through Uranus’ frigid soupy atmosphere⁠—and that might be dipping very close to the methane seas blanketing the planet’s hypothetical mineral core⁠—Prospero would have two minutes in which to shed her velocity.

Two minutes⁠—at 150 Gs.

Men had stood 40 and 50 Gs for a fractional second.

But for two minutes⁠ ⁠… Grunfeld told himself that the only surer way to die would be to run into a section of the Enemy fleet. According to one calculation the ship’s skin would melt by heat of friction in 90 seconds, despite the low temperature of the abrading