Sage Alexander and the Blood of Seth

"A gripping fantasy and adventure with demons, angels, and so much more"—second in the series that's the basis for the TigerBeat TV show (Kids' Book Buzz).
For Sage Alexander, life was forever changed when he realized that the Angelic embodiments he could always see, the magnificent heavenly powers that he possessed, and the destiny he had always been told he had to fulfill were all real and true, and that his promised powers were necessary to defeat the Seven Princes of Hell.
After saving his father from the clutches of Greed incarnate and destroying Prince Mammon, Sage has come to realize his place within the Angelic Council and the world as a protector to humanity, though the prospect is daunting. Sage has only just reunited his family back on earth, however, when Belphegor, the Prince of Sloth, takes Sage's little brother, Nick, as revenge for the fall of Mammon.
Sage must now venture forth yet again into that dark wasteland mortals call Hell and retrieve what is his. Will he continue on his path to destroy the seven embodiments of sin, or will he be thwarted by Sloth, and leave humanity to evil's devices? Join Sage, Elsbeth, Ronan, and more in the next chapter of this treacherous journey.
"[An] epic journey of a reluctant hero who will try to thwart the Seven Princes of Hell . . . Clear shelf space to invest in the whole series that includes mythology as found in the Percy Jackson series combined with a quest like that of Eragon." —VOYA
"A deftly written fantasy saga." —Midwest Book Review