Impure Blood Series by Nadja Baer, Nathan Lueth

Dubbed the "Abomination" because of his appearance, Roan carries within his human body the Blood of a mystical and nearly extinct race known as the Ancients. Blood which manifests itself in exceptional strength and physical mutation. Blood that earned him imprisonment in the Veresta Stadium, where pure-blooded humans force him to fight in gladiatorial games... moreDubbed the "Abomination" because of his appearance, Roan carries within his human body the Blood of a mystical and nearly extinct race known as the Ancients. Blood which manifests itself in exceptional strength and physical mutation. Blood that earned him imprisonment in the Veresta Stadium, where pure-blooded humans force him to fight in gladiatorial games. He jumps at the prospect of freedom when a mysterious girl named Dara appears at his cell and offers him a chance at a new life in exchange for his help. Roan cares only for his freedom until a new player joins the game and threatens the very existence of humanity. Now Roan must make a choice: Overcome a lifetime of humiliation, repression and rage, and protect the people that imprisoned him, or walk away and allow humanity to suffer the consequences of its mission to suppress the Ancient Blood. less

Roan follows Dara back to Turien to keep an Ancient device out of the hands of those who would use it for evil. There they find an army has risen up out of the earth and the sea to attack the city state, leaving death and destruction in its wake. When Mac, a teenaged girl with more sense for mechanics than keeping out of trouble, is captured by the leader of the invading army, Roan is once again presented with a choice between his human and his Ancient Blood... moreRoan follows Dara back to Turien to keep an Ancient device out of the hands of those who would use it for evil. There they find an army has risen up out of the earth and the sea to attack the city state, leaving death and destruction in its wake. When Mac, a teenaged girl with more sense for mechanics than keeping out of trouble, is captured by the leader of the invading army, Roan is once again presented with a choice between his human and his Ancient Blood. Even on the brink of ruin, Turien holds no welcome for her would-be heroes. Caspian's father has put out a bounty on his son's head that ensures the city guard will be on the lookout. Tension mounts as each member of the company finds their loyalties shifting, their secrets exposed, their questions unanswered. Who is Auhle, why is he after the device, and what does an old hermit cast out of the Watchers' society have to do with it? less

Dara has disappeared in a fit of uncontrolled rage. Now she has to learn to rein in the power in her Ancient Blood before it burns her from the inside out while Caspian, Mac, and Roan attempt to locate her from across the continent. Elnor takes a detour to check in with her boss and to serve a side of blackmail on an all-too-deserving target.All roads lead to Eldendore, a city-state plagued by years of bigotry and intolerance of the Ancient Blood... moreDara has disappeared in a fit of uncontrolled rage. Now she has to learn to rein in the power in her Ancient Blood before it burns her from the inside out while Caspian, Mac, and Roan attempt to locate her from across the continent. Elnor takes a detour to check in with her boss and to serve a side of blackmail on an all-too-deserving target.All roads lead to Eldendore, a city-state plagued by years of bigotry and intolerance of the Ancient Blood. Rebellion threatens to spill into the streets even before Roan arrives. Tentative new friendships are formed and immediately tested in the midst of chaos. While fighting their way out of yet another city, the company is once again forced to question Auhle's intentions in stealing the ancient artifact that the Watchers are after. less

No one knows how to help Dara control the power running through her veins. If she can't tame the raw energy of the Ancient Blood, it will burn her out. Auhle is her last resort. But he is up to something. A no-good something. And like everyone else, he's got a price—one that Dara isn't sure she's willing to pay.Caspian, Mac, Roan, Elnor and Jaem race back to Kaleb’s desert lab for answers, only to find that they are too late. Now they have to convince the enemy of their enemy to be friends... moreNo one knows how to help Dara control the power running through her veins. If she can't tame the raw energy of the Ancient Blood, it will burn her out. Auhle is her last resort. But he is up to something. A no-good something. And like everyone else, he's got a price—one that Dara isn't sure she's willing to pay.Caspian, Mac, Roan, Elnor and Jaem race back to Kaleb’s desert lab for answers, only to find that they are too late. Now they have to convince the enemy of their enemy to be friends. They try to enlist the dysfunctional Watcher Society to unite against the threat posed by Auhle. Even then, no one knows if their numbers will be enough to stand against the black army under Auhle's command.All converge upon the Airen Islands and an abandoned Temple of the Ancients for the final battle to decide the future of humanity and the Ancient Blood. less