The Comet Cycle

They called the comet Cain, after the astronomer who discovered it. It passed 500,000 miles from Earth. We were spared planetary destruction and granted a light show like no other. But, one year later, Earth span into the debris field left by the comet and a meteor storm struck. Roads, buildings and even a small town were annihilated. It was the night of a mysterious double murder, the deed overshadowed by the discovery that the burning remains of the rock contained an unknown substance more precious than gold.

“[In THE NINTH METAL] debris from a comet drops a fabulously valuable new metal on Northfall, MN., turning it into a bloody, brawling boomtown. Great characters, fine writing, totally engrossing.” —Stephen King “Take one part dystopia, one part sci-fi, two parts apocalypse, then ride...

The night the sky fell, Jack and Nora Abernathy’s daughter vanished in the woods. And Mia’s disappearance broke her parents’ already fragile marriage. Unable to solve her own daughter’s case, Nora lost herself in her work as a homicide detective. Jack became a shell of a man; his...

It began with a comet. They called it Cain, a wandering star that passed by Earth, illuminating the night with a swampy green light and twinning the sky by day with two suns. A year later, Earth spun through the debris field the comet left behind.

The third book in Percy’s innovative and acclaimed Comet Cycle, The Sky Vault, follows an investigation of a mysterious weather phenomena in Fairbanks, Alaska, and a government secret buried since WWII. The comet, Cain, came from beyond our solar system, its debris containing elements unknown...

The comet, Cain, came from beyond our solar system, its debris containing elements unknown. It brought a powerful new metal to the once-declining Midwest, alien fungus to the forests of the Pacific Northwest, and now, in the isolated region of Fairbanks, Alaska, the skies shift and stretch as an interstellar dust cloud seeds itself in the atmosphere. The National Weather Service dismisses the anomaly. Then, an hour outside of Fairbanks, a plane shudders its way through pulpy, swirling, bruise-shaped clouds, lit with sudden cracks of lightning. The sky opens. And the plane vanishes.