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Captain Keyes said, “Fire thrusters to position us in orbit around the planet, Ensign Lovell.”
“Aye, sir,” he replied.
ThePillar of Autumn glided around the gravity well of the moon.
Cortana detected a radar echo ahead, an object hidden in the shadow.
As the ship rounded the dark side of the gas giant, the object came into full view. It was a ring-shapedstructure . . . gigantic.
“Cortana,” Captain Keyes whispered. “What is that?”
Cortana noted a sudden spike in pulse and respiration among the bridge crew . . . particularly the Captain.
The object spun serenely in the heavens. The outer surface was gray metal, reflecting the brilliantstarlight. From this distance, the surface of the object seemed to be engraved with deep, ornate
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geometric patterns.
“Could this be some kind of naturally occurring phenomenon?” Dominique asked.
“Unknown,” Cortana replied.
She activated the ship’s long-range detection gear. Cortana’s holo image frowned. ThePillar of Autumn’s scanning systems were fine for combat . . . but for this kind of analysis it was like using stone tools.She diverted processing power away from ancillary systems and channeled it into the task.
Figures scrolled across the sensor displays.
“The ring is ten thousand kilometers in diameter,” Cortana announced, “and twenty-two point threekilometers thick. Spectroscopic analysis is inconclusive, but patterns do not match any known Covenantmaterials, sir.”
She paused and aimed the long-range camera array at the ring. A moment later a close-up of the objectsnapped into focus.
Keyes let out a low whistle.
The inner surface was a mosaic of greens, blues, and browns—trackless desert; jungles; glaciers and vastoceans. Streaks of white clouds cast deep shadows upon the terrain. The ring rotated and brought a newfeature into view—a tremendous hurricane forming over an unimaginably wide body of water.
Equations scrolled furiously across Cortana as she studied the ring. She checked and rechecked hernumbers—the rotational speed of the object and its estimated mass. They didn’t quite add up. She ranthrough a series of passive and active scans . . . and found something.
“Captain,” Cortana said, “the object is clearly artificial. There’s a gravity field that controls the ring’sspin and keeps the atmosphere inside. At this range—and with this gear—I can’t say with one hundredpercent certainty, but it appears that the ring has an oxygen-nitrogen atmosphere and Earth-normalgravity.”
“If it’s artificial, who the hell built it . . . and what in God’s name is it?”
Cortana processed that question for a full three seconds, then finally answered: “I don’t know, sir.”
Captain Keyes took out his pipe, lit it, and puffed once. He examined the curls of smoke thoughtfully.“Then we’d better find out.”
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They stand alone—undaunted—before the mightiest enemy in the universe.