Usek: Haven's Last Blade by J.H.H.Spears (hardcover)

Usek was an imprisoned subject, rendered amnesiac by the experiments she under-went. Now, she is on a quest for revenge against those responsible. Seemingly in her head, a mysterious presence aids her with its ancient abilities, guiding her to its- to her goal. Along the way, Usek makes and uneasy alliance with the city's rebel faction, the Torin, and an alien group known as the Hydro Heads. Will Usek get her revenge or will her blade be dulled?