Sera leads a simple life. A little smuggling, some drinking contests, and captaining her star freighter, Sabrina. But when she picks up a mysterious shipping container on Coburn Station, things begin to go wrong. She finds herself at odds with The Mark, a dangerous pirate organization that wants the cargo on her ship. Inside the container she not only finds a woman, but a secret thought lost millennia ago. The woman is Tanis Richards, and she knows the location of the Intrepid, a missing colony ship from humanity’s golden age. Sera knows how to help Tanis and the Intrepid. But to do that, she will need to reveal a secret that will pull her back into a life she left long ago. A life from which she was exiled in shame and disgrace. Tanis doesn't trust Sera; and Sabrina’s rag-tag crew is nothing like what she's used to, but she's going to have to rely on them to avoid capture and get back to the Intrepid. As Tanis and Sera battle pirates and interstellar governments, the two women forge a friendship that will forever shape the destiny of humanity.

Tanis Richards has spent half her life on the Intrepid, guiding the great colony ship, and its two million passengers, across hundreds of light-years. She has risked life, limb and those dearest to her to get this far. Now she’s within reach of her goal; the New Canaan System, and a normal, stable life. The kind she's only dreamed about. The only remaining hurdle is to strike a deal with the Transcend Alliance and trade the Intrepid’s advanced technology for the star system. If only things were so easy. The Intrepid’s arrival has upset the delicate balance of power between the Transcend, the Orion Guard, and the Inner Stars. Everything Tanis has ever hoped for is at risk as she fights to build the colony of New Canaan amidst the looming specter of war.

The battle of Bollam's World is over, but war now looms over the Orion Arm of the galaxy. The arrival of the most powerful ship in human space is about to set the galaxy on fire. Bollam’s War The battle of the five fleets rages in the space surrounding Kithari in the Bollam’s World system. Throughout, a specter, barely detectable, slips through the battle, sowing dormant missiles, and unleashing devastating attacks on the enemy. That ship is the Andromeda and Joseph Evans is at its helm. It is up to them, at the end, to be the one ship which stands between the Intrepid and the Boller’s zealous admiral, Senya. Sentience Tanis knew that Bob would not tolerate enslaved AIs on his ship, and that tolerance has come to an end. Through Priscilla he makes an offer to the human and AI crew of Sabrina that they cannot refuse. Through that offer, Sabrina and the other AI aboard her ship learn of the AI Expanses and what communion with their kind really means. Their evolution charts a new course for Sabrina and not everyone will make it to Ascella. Set the Galaxy on Fire News of the Intrepid’s decisive victory in Bollam’s World spreads across the Orion arm and beyond, into the Transcend faster than the speed of light. The President of the Hegemony of Worlds, often called the AST, learns of her fleet’s loss and pledges to find the Intrepid no matter where it has gone. In the Spica Federation, and old friend of Sera’s sees the news and knows that she has to help her friend, lest she fall into a trap and lose everything she loves. Lastly, beyond the Inner Stars on the far side of the Orion Nebula, General Garza learns of the Intrepid’s appearance and begins to muster The Orion Guard for a war which will span all of settled space. The Transcend Sera left The Hand, the Transcend government’s black-ops unit years ago, but when their director learns of what she has done, he convenes a meeting to ensure she is returned to the fold—one way or another. Sera’s former lover, Mark, is determined to get on the mission, even if it means he will have to travel with Sera’s older sister across three thousand light-years.

The war will come—it is inevitable. After centuries of struggle, the ISF Intrepid has finally brought its colonists to New Canaan, a star system better than any they imagined. They made landfall and began to build their new home, far from the troubles of Sol and the Inner Stars. Yet no one in the Orion Arm has forgotten that the colonists possess the most valuable technology known to humankind, least of all Tanis Richards—as she secretly prepares to defend New Canaan against any and all aggressors. Now things have come to a head. A Transcend fleet has invaded New Canaan, and a Hegemony of Worlds fleet on its way. Tanis Richards must defeat a rogue AI that has its own designs for humanity’s future, while saving her people from invaders. General, governor, commander of twenty thousand warships, Tanis Richards stands on the edge of a precipice. If she jumps, she will draw all of humanity into total war.

This book is intended to be read after Orion Rising A look at the days following the Defense of Carthage, and some memories of days gone by. Join Tanis, Joe, their three daughters, and many others across the New Canaan colony as they clean up after the battle with Orion, and prepare for what is yet to come.

The Battle for New Canaan is over, but the war has just begun… Tanis and Sera have taken the I2 to Khardine, the new capital of the Transcend, and must now travel to the Inner Stars and meet with Scipian Empress, Diana—who they hope will be an ally to the Transcend. With the Trisilieds Kingdom, the Hegemony of Worlds, and the Nietzschean Empire all aligned with the Orion Guard—not to mention a civil war brewing in the Transcend—they will need all the help they can get to secure the Inner Stars. But Empress Diana has her own plans for the Inner Stars, and while they may dovetail with the Transcend’s for now, they may not always do so…

\\\The drums of war thunder across the stars...\\\ The final negotiations between the Silstrand Alliance and the Scipian Empire are complete, and it's time for Tanis and Sera to part ways. Sera must return to Khardine, where new challenges await, and preprations for the march on Airtha begin. Meanwhile Tanis turns toward the Praesepe Cluster. There, a handfull of interstellar nations hold out against the encroaching Nietzschean Empire. Sera's Hand agents are certain that the Nietzscheans are backed by Orion, and Nadine is sent in ahead to connect with agents in Septhia before the I2 arrives. Tanis and Bob have an additional goal. They want to learn more about the technology that Peter Rhoads used to control his fleet. Technology that had its origins in the former Genevian Alliance, and may still exist in a group of mercenaries known as the Marauders. \\

The Orion War marches ever onward... 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. Tanis must take the next step if she's to hold back the tide of war that threatens to swallow the galaxy.

The time has come for Tanis to take the fight to the Trisilieds and to free the Pleiades. Meanwhile, Sera must go to Airtha and stop her mother once and for all.

Tanis and the Seras must face off against their most deadly enemy yet: Airtha.

While battles rage across the Transcend and the Inner Stars, Tangel's focus shifts to Orion space.

In an effort to end the war, Tangel prepares starfire.

The Alliance has suffered an unimaginable loss: Tangel is dead. The crew of the I2 struggles to carry on, dealing with the impending occupation of New Sol and surrender of the Orion Freedom Alliance. But Bob harbors a suspicion, a kernel of hope, and sends the Falconer in search of additional survivors. Back at Star City, Finaeus and Earnest reel at the news that Tangel died to save her family and people—until they are visited by a mysterious AI from the past who presents them with a way forward. Now the race is on. Sera chases after a Caretaker ship headed to the galactic core while Finaeus and Earnest travel beyond the galaxy to save a future Bob can no longer see. Only time will tell if they can forge a new path forward.

The final novel in the Orion War series, Return To Sol sees the I2 and her crew return to where it all began... An Epic Space Opera Adventure.