After the passage of two decades, the Omnians discovered a second, critical clue about the Nua'll, humankind's enemy, while investigating Celus-4, the home world of the intelligent, canine-like aliens, the Dischnya. This striking discovery, combined with the final broadcast of the Nua'll sphere at Libre, prior to its detonation, gave Alex Racine and company the means to narrow the search for the Nua'll home world. Alex has a consuming desire to locate the point of origin of the Nua'll before another gigantic sphere arrives to destroy more human colonies.

Alex Racine, who led an elite group of humans and SADEs (self-ware digital entities), left the newly discovered planet of Celus-5 under difficult circumstances. Few of the Harakens with Alex thought there was little he could do to bring peace to the embroiled planet. From their viewpoint, the demands of the Celus-5 Swei Swee, the six-legged aliens of the ocean, and the Dischnya, the warring, doglike, intelligent creatures who inhabited the dry plains, were too convoluted to solve.

Trouble infiltrated the Harakens' capital city of Espero, in the form of New Terra criminal gangs who grew wealthy and powerful on the moons of Ganymede, hiding behind the cover of an ill-conceived mining charter. The gangs brought stims and addictive hallucinogenic drugs to Espero, distributing them to the young on the planet.

Until the Confederation created Allora, it had produced SADEs (self-aware digital entities) for hundreds of years with enormous consistency and harnessed their capabilities to power the society. But this particular young SADE was disturbed by her confinement. Trapped in metal-alloy housing on the bridge of a luxury passenger liner, Allora sought to possess the same freedom enjoyed by humans, who came and went from her starship with abandon.

Nine years of tranquility came to an abrupt end when a Méridien starship entered the Hellébore system, sounding a dire warning for Alex Racine, the Haraken president. Unwanted visitors had arrived again. But this time, they're not alien; they're human. Claiming to have followed the course of a colony ship launched a millennium ago when Earth wrestled with resource wars and climate change, the mission commander, Antonio García, requests a meeting with the planet's leaders.

Sol's warships paid the ultimate price for threatening the Haraken and New Terran worlds. Now, Haraken president Alex Racine and his Méridien partner, Renée de Guirnon, are engaged in a desperate gamble to stop a war between their worlds and United Earth's (UE) massive forces before it starts. What's Alex's grand plan? He hasn't a clue, but his people believe in him and hope he will find a way to protect them.

Artifice, the great enemy, has been defeated. The sister SADEs, Omnian sentient digital entities, are free from their boxes. Most humans are unaware that the sisters have duplicated themselves many more times than suspected. They now constitute a sizable, powerful group, calling themselves the Sisterhood. The elimination of Artifice’s rule should be a time of relief and recovery for Alex Racine’s Omnian fleet and for the Toralians, whose home world was Artifice’s lair. Instead, it’s a chaotic period.

The Méridiens are fleeing to their far colonies - and they have reason to run. Over the course of decades, they have lost hundreds of ships, billions of people, and seven Confederation colonies to an alien enemy: an advancing swarm of silver ships transported in the bowels of a gigantic, spherical vessel. Alex Racine, who once enjoyed the solitary life of an explorer-tug captain, is now an admiral and responsible for the lives of a quarter million Librans.

The great spheres and probes of Artifice, humankind's enemy, haunt every inhabited world near and far. The Omnians' long and arduous search for Artifice has ended. They've located Artifice's lair in the Talus system. 

The surviving Méridiens have returned to Confederation space, aided by their recently discovered cousins, the New Terrans. They expect a celebration after their 71-year absence. Instead, they're shocked to find the silver ships have destroyed half the Confederation. The Méridiens are fleeing in advance of the horde of alien ships. But Alex Racine and his crew didn't come this far to run away from humanity's enemy.

An explorer tug captain, Alex Racine detects a damaged alien craft drifting into the system. Recognizing a once-in-a-lifetime opportunity to make first contact, Alex pulls off a daring maneuver to latch on to the derelict. Alex discovers the ship was attacked by an unknown craft, the first of its kind ever encountered. The mysterious silver ship's attack was both instant and deadly.

Dangerous forces are at work across galactic space that the Omnians are attempting to stabilize, but their resources are severely strained. The SADEs, self-aware digital entities, express to Alex Racine and Renée de Guirnon their desire to know the method of their creation. Alex and Renée, the Omnian co-leaders, want to obtain the knowledge for the SADEs, who are humans’ closest allies. Alex, Renée, and Julien, a friend and a SADE, board the giant city-ship, Freedom, which sails for Méridien, the home world of the far-reaching human colonies of the Confederation.

Omnians, Earthers, and alliance members are fighting the Colony, the horde of sentient insectoids that threaten alliance space. The Colony has had centuries to expand through the network of domes built by the Messinants, an ancient race. The domes’ Q-gates allow the insectoids to invade planets through their inventive use of rings, which extends the power of the domes. It’s Omnian superior technology that gives a temporary advantage to the peaceful alliance members who lead the fight to retake their planets.

Pyre is a volatile planet. Its surface belches heat and noxious gases, forcing downsiders to inhabit domes. But Pyre's instability isn't limited to its geology. The colonists, who were marooned in the system hundreds of years ago, have endured a tumultuous history. Exploring Triton, Pyre's third moon, spacers inadvertently activate an alien dome. Nearly a year later, the Belle's bridge crew, who monitors the alien site, is alarmed, when they witness a bright blue light shoot from the dome's platform and merge with the shield. 

Pyre's humans suffer multiple cultural shocks. They discovered the Messinants dome, an ancient construction that houses a quantum-coupled gate. More shocking, they find that sentient alien races utilize a network of these domes to journey between their far distant worlds in pursuit of alliance matters. If humans wish to join this elite collection of sentients, they must contribute significantly in trade, tech, or something of equal value.