As human slaves were herded into the maw of a massive vessel, Kristin realized her normal life was over and her fight for freedom was just beginning…The alien Catteni value strength and intelligence in their slaves—and Kristin has managed to survive her enslavement while hundreds of other humans have not. But her trial has just begun, for now she finds herself part of a massive experiment. The aliens have discovered a new world, and they have a simple way of finding out if it’s habitable: drop hundreds of slaves on the surface and see what happens.If they survive, colonization can begin. If not, there are always more slaves.

    Under assignment from the Minister of Defense, the two embark on a mission to the astonishing city of Alpha--an ever-expanding metropolis where species from all over the universe have converged over centuries to share knowledge, intelligence and cultures with each other.There is a mystery at the center of Alpha, a dark force which threatens the peaceful existence of the City of a Thousand Planets, and Valerian and Laureline must race to identify the marauding menace and safeguard not just Alpha, but the future of the universe.

    Back home, their adventures are followed by countless breathless fans, but the reality is far less romantic as they deal with dust, nitpicking regulations, and uncooperative aliens. Teamed with a young intern whose specialty is mating customs, and a native guide of indeterminate gender, the group sets out for a previously unexplored sector of the planet. As they survey canyons and cataracts, battle dangers, and discover alien treasures, they will soon find themselves in alien territory of another kind: exploring the paths and precipices of sex. And love.