First they shattered the moon. Now they’re here for the world.

When the members of the Symbicate-a collection of skilled agents taking on the mantle of a dying crime ring-are faced with a futuristic new threat, they’ll have to join forces with their enemies to save their cities from annihilation. This is a steampunk world, where the moon has been fractured, and symbioids rule-sinewy, living tissue that weaves with gadgets and hosts, resulting in heightened, unique abilities. Hired Heroes, scorned freedom fighters, and assassins team up when a rainbow comet appears in the sky and rains destruction. But even the symbioid-woven young heroes fear they have finally met their match against a force determined to finish what it started with the moon…