Gates of Mars: Book 1 of the Halo Trilogy by Kathleen McFall

SPSFC

What happens after the plutocrats colonize Mars? An interplanetary mystery and a searing critique of the billionaire quest for Mars. Funny, irreverent, a bit hopeful. Plus, giraffes.   IN THE AGE OF SURVEILLANCE, HOW CAN A PERSON GO MISSING?  The year is 2187. Crucial Larsen, a veteran of the brutal Consolidation Wars, is working as a labor cop on Earth. The planet is a toxic dump and billions of people are miserable, but so what? It's none of his business. He's finally living a good life, or good enough. But then Essential, his beloved kid sister, disappears on Mars.  When Halo--the all-powerful artificial-intelligence overseeing Earth and Mars on behalf of the ruling Five Families--can't (or won't) locate his sister, Crucial races up-universe to find her. In the Choke, the frigid, airless expanse outside the luxury domes, Crucial uncovers a deadly secret from Essential's past that threatens to shatter his apathetic existence...and both planets. Blending science-fiction with the classic, hard-boiled detective story, Gates of Mars is a page-turning, futuristic thrill-ride featuring a gritty, irreverent anti-hero--Crucial Larsen.  The first book of the Halo Trilogy, Gates of Mars is the eighth novel by award-winning authors Clark Hays and Kathleen McFall.