Is the handsome winged criminal a madman? Or has he uncovered a government conspiracy that threatens his entire race? In the country of Tar, humans and winged people called hollow-boned live side by side. Red Raven, a criminal so named by the media because of his red wings and black hair, wreaks havoc on the cities. He revels in torturing government employees and blowing up charity organizations. His true motives with these attacks, however, remain a mystery. Indigo is an agent of the Sentinels of Light, a private organization sworn to uphold justice. The skilled fighter is the Sentinel's Master Swordsman and makes apprehending Red Raven his top priority. However, he finds the criminal beautiful and charming. The man may not be as evil as everyone seems to think. The more often they battle each other, the harder it becomes for the two men to deny their fiery attraction. And the more he learns about the alluring man's motivations, the more Indigo questions everything he was taught about the sheltered world he was raised in.