The alien virus has begun its offensive, punching through the human defences and sending advance elements to threaten Earth itself. HMS Invincible and her crew, having barely returned from their last mission, are thrown into a desperate mission to strengthen the inner line of defences before the virus can smash them too and destroy the human race. The stakes have never been so high. Defeat means the end of everything.

On her last mission, HMS Invincible discovered an alien threat beyond human understanding. Defeat means the end of everything, the end of existence as nothing more than mindless host-bodies, the end of humanity and its alien allies alike. The stakes could not be higher. As a deeply divided humanity struggles to prepare a defense, with enemies inside and outside the human sphere just lurking to strike, Invincible is sent deep into alien space on what should have been a simple reconnaissance mission. 

Seventy years ago, the interstellar supercarrier Ark Royal was the pride of the Royal Navy. But now, her weapons are outdated and her solid-state armour nothing more than a burden on her colossal hull. She floats in permanent orbit near Earth, a dumping ground for the officers and crew the Royal Navy wishes to keep out of the public eye. But when a deadly alien threat appears, the modern starships built by humanity are no match for the powerful alien weapons.

The alliance between the Great Powers is starting to fall apart, the human economy cannot keep up with the urgent need for newer and better starships, and politicians are demanding an end to military spending. When a generation starship is detected approaching a British colony world, HMS Invincible is dispatched to intercept the aliens before they can make landfall. But the newcomers bring with them tidings of a new and deadly threat, an expansionist alien race far too close to the Human Sphere for comfort...and a sinister horror beyond human understanding.

The Galactic Empire is dying and chaos and anarchy are breaking out everywhere. After a disastrous mission against terrorists on Earth itself, Captain Edward Stalker of the Terran Marine Corps makes the mistake of speaking truth to power, telling one of the most powerful men in the Empire a few home truths. As a result, Captain Stalker and his men are unceremoniously exiled to Avalon, a world right on the Rim of the Empire. It should have been an easy posting...

The Royal Navy never expected to fight a full-scale interstellar war. Everyone knew the Great Powers would never risk everything on armed conflict when there was plenty of room for everyone in outer space. But when a hostile alien force stumbles across humanity's handful of colony worlds, the Great Powers must set aside their differences and fight to preserve humanity from utter destruction.

A new war has broken out.... Indian ships have invaded three British-held systems, and Indian troops have occupied British colonies, forcing Britain to choose between war and shame. The Royal Navy, battered by the fires of the First Interstellar War and desperately trying to recover from the terrifying casualties, must launch a counterattack and recover the colonies. For HMS Warspite - and a task force of British warships - the stakes have never been so high.

In this collection of short stories, New York Times best-selling author Jack Campbell explores what kinds of problems mankind might face as our horizons expand.

The last reward Kira Demirci expected for heroism in a time of war was to spend the rest of her life dodging assassins - but when her government betrays her as part of their surrender, she and her comrades flee the star system of Apollo to the edge of civilized space. The Syntactic Cluster is disorganized, disunified, and in desperate need of the nova fighters Kira smuggled out of Apollo with her. With an entire squadron supposed to follow in her wake, it falls to her to build a new home for her comrades.

Humanity has won a great victory, shattering the alien fleet that would have destroyed the Solar Union and exterminated the human race. But the war is not yet over. The Tokomak still have a huge fleet and an immense industrial base, large enough to crush the human race once and for all if they have time to bring it into action. The war may still be lost.

The future has amazing technology. Our alien allies have magic. Together, we are building a training system to teach the best of humanity to go to the stars. But the training is monumentally expensive. Stephanie Morgana is a genius, she just doesn't know it. The artificial intelligence that runs the virtual world is charged with testing Stephanie, a task it has never performed before. Will Stephanie pass the test and be moved to the advanced preparatory schools, or will the system miss her?

As the Commonwealth produces more starships and increases recruits, victory begins to slip from Theocratic control. This can only make the Theocracy more desperate to win...and more dangerous to fight. After a mission to liberate an occupied planet ends in nuclear devastation, Kat Falcone - now a commodore in command of HMS Queen Elizabeth - sees firsthand just how far the enemy will go.

When a scientist is murdered after finding signs of alien magic in an archeological dig, Mage Damien Montgomery, Hand of the Mage-King of Mars, is sent to investigate both the murder and the alien runes. His investigation is interrupted when a mysterious ship attacks the ruins with weapons only available to the Martian Navy. Despite saving the dig site, Montgomery is left with more questions than answers.

When accusations of piracy and mass murder are laid against his homeworld, Damien Montgomery is sent to resolve the crisis. As counteraccusations fly and an old flame reenters his life, the newest Hand of the Mage-King of Mars finds himself in the midst of a bloody interstellar shadow war. With the death toll mounting, Damien must decide whether he should trust the world he came from - or the world that asked for his help. The wrong choice will trigger a civil war that could shatter human civilization. No pressure.

The destruction of the secret archive of the Royal Order of Keepers on Mars has left Damien Montgomery, Hand of the Mage-King, with his enemies defeated, his lover dead - and his questions unanswered. When he seeks out the remaining Keepers for answers, he discovers only violence and death in their strongholds. Someone else is hunting down the survivors to make sure they never answer Damien's questions - or anyone else's.