Insectoid Dronons have slain the queen Semarritte, throwing into chaos the ten thousand worlds over which she reigned. Desperate to save mankind, Lord Veriasse, Semarritte's near-immortal consort, has created a new queen: Everynne, cloned from her dead mother. Born to rule, Everynne instead is on the run, often only one planet ahead of advancing forces of the invaders, who recognize that Everynne is a powerful rallying point for threatened humanity.
Hotly pursued by the dronons and their armed forces, the Vanquishers, Everynne falls in with cocky bodyguard Gallen O'Day; the pious Orick, an intelligent black bear; and the beautiful orphan, Maggie Flynn. With these new allies sworn to her service, the young queen begins the great struggle against the aliens. Leaping from world to world via an ancient system of instantaneous transport gates, the heroes face terrible dangers and great wonders as they seek the heart of the Dronon worlds, carrying the battle straight to the enemy.