Under the Eye of God: Trackers, Book One

Rule of Blood: Once they had been humanity's last best hope: a race of genetically engineered killing machines known as the Phaestor and their army of deadly Moktar Dragons. Now, the enemy long vanquished, the Phaestor themselves have become the enemy, seizing control of the galaxy and subjugating all less species -- including humans -- to feed their appetite for terror and blood. On a small, insignificant planet called Thoska-Roole, a ragtag alliance of humans, androids, and bioforms make a last desperate stand against Phaestor domination. Among their numbers are two bounty hunters, a mercenary starship captain, and a disgraced reptilians warrior. As the Phaestor begin a new reign of unprecendented terror, these rebels prepare to strike back against their vampire overlords and bring revolution to the stars.