Hard Space Opera

The planet Lusitania is home to three sentient species: a large colony of humans; the Pequeninos; and the Hive Queen, who was brought there by Ender Wiggin. Once again, the enemy (the Starways Congress) has gathered a fleet and is threatening to destroy Lusitania. Ender's oldest friend, Jane, an evolved computer intelligence, is trying to save the three sentient species of Lusitania, but the Starways Congress is destroying the computer world she lives in.

The final novel in the Orion War series, Return to Sol sees the I2 and her crew return to where it all began....

The Allied fleet has stopped the Nietzscheans at Pyra, but the battlefront grows wider day by day. While Sera distributes the Transcend's fleets to protect the alliance, Tanis must come to grips with what happened to her on Pyra's surface. In addition, Bob conveys a number of hard truths that will force her to re-think her role in humanity's future. But the allies' enemies are not sitting idle. General Greer, Justin, the Caretaker, and Airtha are all advancing plans to see their visions of the future come true.

Despite political foes, professional jealousies, and the scandal which drove her into exile, Capt. Honor Harrington has been offered a chance to reclaim her career as an officer of the Royal Manticoran Navy. But there's a catch. She must assume command of a "squadron" of jury-rigged armed merchantmen with crew drawn from the dregs of her service and somehow stop the pirates who have taken advantage of the Havenite War to plunder the Star Kingdom's commerce.

A planet in the endless emptiness of space, far from the warmth of any sun. And yet there are people who populate its vast caverns, living, working and loving. Since time immemorial, they have been on course for Andromeda, the neighboring galaxy of the Milky Way. This is the prophecy of the ancients, the one goal that unites them all, their cult. But then the unthinkable happens: the journey stops because the planet enters the orbit of a mysterious object that can't be seen in any telescope.

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.

Captain Keyes is loved by the public but hated by Command. He captains the UHS Providence, an aging supercarrier and the last human ship not dependent on dark tech - technology humanity has used to rule over the galaxy since barely defeating the Ixa in the First Galactic War.

With the help of a command AI, the hole in the Daedalus has been fixed by Hazel and her friends. But in the process, they have antagonized the Yi, the aliens who are actually controlling the Daedalus. After a daring escape from the Yi, Hazel and her friends now must convince the people of the Daedalus villages and the village leaders that the Yi exist - and that they must fight back in order to survive. This proves tricky, as those in power don't want their authority challenged.

Ever since he joined Omega Force, Captain Jason Burke has lived with the underlying fear that one day Earth would be discovered. His desire to keep Earth's existence and location a secret has driven him to extremes, and kept him far away from his homeworld for a long time. But now Jason's greatest fear is realized, and a fleet of alien ships has attacked his planet. Omega Force rushes to Earth's defense, but the ships are like none they've ever encountered, and employ weapons they have no defense for.

Commodore Straker's rebellion grows in strength - but his enemies are growing even faster. Faced with a dozen rebel planets in their territory, the Mutuality finally takes notice of the upstart known as the Liberator, and they gather a vast fleet to crush him. Preparing for a titanic interstellar battle, it's clear Straker has no chance. His tiny enclave of free planets can't survive the weight of 1000 worlds. His own officers realize this, and some of them begin to turn against him....

Fleet of Worlds takes a closer look at Human-Puppeteer (Citizen) relations and the events leading up to Niven's first Ringworld novel. Kirsten Quinn-Kovacks is among the best and brightest of her people. She gratefully serves the gentle race that rescued her ancestors from a dying starship, gave them a world, and nurtures them still. If only the Citizens knew where Kirsten's people came from.

Growing up, Travis Uriah Long yearned for order and discipline in his life...he two things his neglectful mother couldn’t or wouldn’t provide. So when Travis enlisted in the Royal Manticoran Navy, he thought he’d finally found the structure he’d always wanted so desperately. But life in the RMN isn’t exactly what he expected. Boot camp is rough and frustrating; his first ship assignment lax and disorderly; and with the Star Kingdom of Manticore still recovering from a devastating plague, the Navy is possibly on the edge of budgetary extinction.

Now, as Turek readies an all-out attack on the Nexus system - a key conquest that could seal the rest of the galaxy's doom - Ky must rally to the challenge, draw upon every last reserve of her strategic skills, and reach deep if she is to tear from the ashes of tragedy her most decisive victory.

Two irresistible forces are rushing together to crush the planet Grayson between them, and only one woman, uncertain of her capabilities, weary unto death, and marked for murder -stands between her adopted planet and its devastation.

After the daring rescue of a political dissident, Omega Force is contracted to investigate a rash of violent attacks on civilian shipping lanes within a group of star systems known as the Concordian Cluster. It seems a simple enough job with a huge payday at the end, and it's exactly what the ragtag group of mercenaries needs in order to keep their ship flying and to stay one step ahead of those hunting them.

The Republic, the Opters, and a strange Crystalline race of unknown origin all meet in a series of titanic battles. Commodore Straker summons thousands of ships, but he soon learns he’s technologically outclassed by the enemy. With traditional victory impossible, the race is on for each side to destroy the key worlds of the other. Billions die, entire planets are destroyed. Even while the war rages, dark suspicions grow. There are traitors in the midst of the chaos. Straker realizes the worst enemy is the one you believed to be your ally....

After orchestrating a galaxy-wide failure of the communications network owned and maintained by the powerful ISC corporation, Gammis Turek and his marauders strike swiftly and without mercy. First they shatter Vatta Transport. Then they overrun entire star systems, growing stronger and bolder. No one is safe from the pirate fleet.

A year ago the Kher Empire was forced to retreat, but they were not beaten. In Orion Fleet, they return with a new weapon. A huge ship driven by AI begins methodically grinding inhabited worlds to dust. This unstoppable enemy is without fear or remorse, and the Rebels begin a desperate battle just to slow its advance. Leo Blake takes Earth's first warship into space to find a counter to this deadly new attack. The Imperial Fleets take notice of Earth's interference, and they're intent upon revenge. Even if he wins, Blake might have doomed our homeworld.

Dan Davis, an electronics engineer, had finally made the invention of a lifetime: a household robot that could do almost anything. Wild success was within reach, but then Dan's life was ruined. In a plot to steal his business, his greedy partner and greedier fiancée tricked him into taking the "long sleep": suspended animation for 30 years.

The newly liberated humans of the Fleet of Worlds and Sigmund Ausfaller, who had been transported by the Puppeteers from Earth to the Fleet, must contend not only with the sly Puppeteers but also the threat of the Pak, a very smart and utterly ruthless species who are fleeing the exploding galactic core in an armada of ships at near light speed. The Pak are headed towards the Fleet of Worlds, having destroyed entire planets in their wake.