Steve P

Arthur's Seat had never sought a galactic role. A relatively new colony world, a mere 300 years old, the planet was always isolated from the galactic mainstream. But with the Empire crumbling after the fall of Earth and other planets taking advantage of the chaos to make their own bids for power, Arthur's Seat suddenly finds itself playing host to tens of thousands of unwanted immigrants, refugees who have been kicked off countless other worlds.

Commander John Winters has been fighting the war since the aliens first arrived 22 years ago. Earth has been ravaged and the alien vessels continue to come through a portal near the asteroid belt. For years, the Steel Castle class destroyers have kept them at bay, but now resources are dwindling. Young men able to fight are in short supply. High-tech computer chips are becoming rare. The navy is down to a handful of ships and only two that are able to destroy the alien spheres at their point of entry, and it requires both of them to perform such a feat. When the Ruby Demon is destroyed ...

Where did mankind really come from? Why are we here? We can't understand the past until we embrace the future. These critical mysteries take center stage as Earth emerges into a galactic society that is far more perilous than anyone could have imagined. Our history is far more complicated than we could have known. Can a few brilliant minds find a way out for Earth?

The year is 2026. China has taken over as the world's largest economy, while the United States, mired in an oil shortage, struggles to adjust to its diminished role. Then, a surprise attack throws the US into a chaos unseen since Pearl Harbor. As the enemy takes control, the survival of the nation will depend upon the most unlikely forces: the Navy's antiquated Ghost Fleet and a cadre of homegrown terrorists.

When Russian President Valeri Volodin's ambitions are foiled in Dagestan, he faces a difficult choice. The oligarchs who support him expect a constant flow of graft, but with energy prices cratering, the Russian economy sputters to a virtual halt. Unable to grow the Russian market at home, his hold on power relies on expansion abroad—a plan that has been thwarted by the United States in the past. But this time Volodin has determined that an indirect approach is the best.

They hunt us. They bomb our worlds for target practice. A star cluster in the constellation of Orion rotates once every 1,000 years. Those who rule there have an ancient tradition: When each cycle ends, they train their fleets by spilling the blood of lesser beings. The enemy fleets are coming again. In response, the Rebel Worlds gather their starships to face the terrifying threat, and this time humanity is asked to stand with them. The last time they considered Earth, Vikings in longboats were raiding English coastlines. Today, we're less primitive. Today, we're a target.

Terry Pratchett's final Discworld novel, and the fifth to feature the witch Tiffany Aching.