Two Syndicate World star systems have fallen prey to a mysterious fleet of warships - a fleet controlled entirely by artificial intelligence - that is now targeting Alliance space. The warships are no mystery to Geary. They were developed by his government to ensure security but malfunctioned. If the Syndics learn the truth, the war with the Alliance will resume with a vengeance.

Geary and the crew of the Dauntless have managed to safely escort important alien representatives to Earth. But before they can make tracks for home, two of Geary’s key lieutenants vanish. The search for his missing men leads Geary on a far-flung chase, ultimately ending at the one spot in space from which all humans have been banned: The moon Europa. Any ship that lands there must stay or be destroyed—leaving Geary to face the most profound moral dilemma of his life.

Admiral Geary's First Fleet of the Alliance has survived the journey deep into unexplored interstellar space, a voyage that led to the discovery of new alien species, including a new enemy and a possible ally. Now Geary's mission is to ensure the safety of the Midway Star System, which has revolted against the Syndicate Worlds empire - an empire that is on the brink of collapse.

Admiral John "Black Jack" Geary earned his rank after being revived from cryogenic sleep to lead the Alliance to victory against the Syndicate Worlds. But his superiors question his loyalty to the regime. Now in command of the First Fleet, Geary is tasked with exploring the frontier beyond Syndic space, a mission he fears deliberately puts the fleet--and himself--in harm's way. An encounter with the alien enigmas confirms Geary's fears.

The first book of best-selling sci-fi author Jack Campbell’s new series Beyond the Frontier returns to find Captain John “Black Jack" Geary, the hero of the Lost Fleet series, awoken from cryogenic sleep to take command of the fleet. Geary’s legendary exploits have earned him the adoration of the people—and the enmity of politicians convinced that a living hero can be a very inconvenient thing.

When the Taljzi’s genocidal invasion brought promises of aid from the oldest and greatest of the Core Powers, humanity and the Imperium looked to the Mesharom for salvation. But that salvation turns to ash as the Mesharom demand the surrender of the very weapons that saved the Imperium. Defiance leaves the Imperium facing the Taljzi without the aide of the galaxy’s wisest race, but with their old enemies the Kanzi at their side, they have no choice but to end this war at any cost.

Seeking to escape the shadow of Annette Bond’s success, Captain Morgan Casimir has taken a posting on the far side of the A!Tol Imperium. Here she hopes to begin a legend for herself that stands apart from her stepmother, the Duchess. A chance encounter introduces her to the xenoarchaeologist Rin Dunst - and to the strange mystery cult that tried to silence him. There are darker secrets in these stars than the A!Tol and their human allies ever guessed...and if they can’t find answers, the Precursors' mistakes might yet destroy the galaxy. Again.

The Merry Band of Pirates offered the bad guys a ceasefire. We won’t mess with them, if they don’t mess with us. Easy, right? No. The aliens chose to do things the hard way. So, the Pirates are racing around the galaxy to clean up the threat to Earth. The infant UN Navy has their own mission with the Alien Legion: Get humanity some allies in the fight. And the Ethics & Compliance Office might have to do something...ethical. Unless they can find a way around it.

The Syndicate Worlds continue to splinter as more star systems pledge allegiance to President Gwen Iceni, General Artur Drakon, and the new government they're establishing at Midway. But the toxic legacy of Syndicate rule continues to undermine their efforts as the rebels encounter difficulty trusting one another and believing their new leaders' promises of freedom from tyranny. Before Iceni and Drakon can put their house in order, they must deal with an even greater threat.

When Terra knelt to an alien Imperium, they guaranteed our safety and our future. But now their enemies are coming for us. To preserve humanity's survival and freedom in a hostile galaxy, Annette Bond tied her world to the A!Tol Imperium, taking on the mantle of Duchess of Terra to rule humanity in the Imperium's name. The A!Tol have provided technology, ships, and money to uplift the new Duchy of Terra, but those gifts come with strings attached. The Imperium has their own plan for Terra - but Bond has tricks of her own.