Rex Rising (Elei's Chronicles, #1) by Chrystalla Thoma
Approx. 76,950 words.
Published on August 11, 2011.
In a world where parasites create new human races, Elei leads a peaceful life as aircar driver — until a mysterious attack on his boss sends him fleeing with a bullet in his side and the fleet at his heels. Pursued for a secret he does not possess, he has but one thought: to stay alive. Yet unless he finds out this deadly secret, he’s a dead man.