Her retirement had been quiet and idyllic, until the day an extremely brutal group of space pirates razed her world and landed at her homestead, killing her younger brother, grandfather and parents.
Tisiphone defeats the security systems, during which battle the sleeping AI accidentally awakes and impresses on Alicia—but not melding, rather, forming a second personality patterned on Alicia's own, but fiercely devoted to the protection of the first.
Using Tisiphone's mind-reading and twisting abilities, they swiftly move their way through the criminal elements of various Rogue (independent) human worlds, tracking down the pirates' suppliers and fences.
He would then arrange a mock battle in which the pirates would appear to be destroyed; in the wake of this victory, Treadwell would no doubt freely and fairly be elected by his people as Emperor, for ending the threat the original Empire proved so impotent against.
Blinded by rage, Alicia plans to ram her battered alpha synth into Governor Treadwell's base, an orbital fortress.
Unbeknownst to her, the selfsame Fleet unit which had forced her to flee had also brought along a battalion of drop commandos, which focused their attention on assaulting the drifting hulk of the pirate dreadnaught and extracted from it the sole surviving senior officer.
Realizing that Alicia had no way of knowing that they had proof of Treadwell's treason, and that she would take matters into her own hand (because she had no way of knowing whether the rot went up even higher than Treadwell), and exactly what sort of plan she could some up with, Brigadier Sir Arthur Keita—Alicia's former commanding officer—her best friend (Major Tannis Cateau) and Inspector Ferhat Ben Belkassem race off in a dispatch boat to intercept Alicia at Soissons.
For their good work, Alicia is issued a full pardon, Megarea is granted her freedom as a sentient entity (Strictly speaking she belonged to the Fleet who had constructed her), and even Tisiphone is awarded a (secret) commendation.
Impressed by the intelligence work she did, O Branch (through Ben Belkassem) offers the trio a place in it (and to pay for the numerous expenses involved in maintaining and supplying an alpha synth), which they accept.