The Whisper of Shadows Series by Kai Jennex, Casey Cross

Hunter was born to destroy the world—but has always wanted to be a hero. Ace doesn’t think he is worthy of love—but there is a mark on his soul that will prove him wrong. Asher believes he is an apathetic monster—but his greatest downfall will always be that he cares too much. Zane thinks he is weak—but doesn’t know he has the strength to save them all. -... moreHunter was born to destroy the world—but has always wanted to be a hero. Ace doesn’t think he is worthy of love—but there is a mark on his soul that will prove him wrong. Asher believes he is an apathetic monster—but his greatest downfall will always be that he cares too much. Zane thinks he is weak—but doesn’t know he has the strength to save them all. -. Hunter had always wanted his life to be something more than mundane ever since he was a child, but after meeting Ace, a guy who could shift from man into dragon, things changed far more than he bargained for. When he said more than mundane, he meant finding a guy to love and maybe buying a house; he hadn't signed up for magic and demons and time travel. Now that his eyes were opened to a new world, he wasn't sure who he was anymore. Was he just an ordinary person who happened to attract horribly bad luck, or was there something more sinister behind everything that had happened in his life? Either way, he never expected to learn how to swing a sword and he certainly never thought he would be worthy enough to fall in love. Obviously, destiny had other plans for him. less

Hunter is gone—but not lost. Not yet. Stripped of empathy and bound to a father he barely knows, Hunter is hunting the Gates of Hell. If he finds the key, Lucifer rises—and the world burns. He doesn’t care who he destroys to make it happen. Ace, a dragon without his mate, is unraveling while a prophecy he can’t decipher hints he might be the only one who can bring Hunter home... moreHunter is gone—but not lost. Not yet. Stripped of empathy and bound to a father he barely knows, Hunter is hunting the Gates of Hell. If he finds the key, Lucifer rises—and the world burns. He doesn’t care who he destroys to make it happen. Ace, a dragon without his mate, is unraveling while a prophecy he can’t decipher hints he might be the only one who can bring Hunter home. Zane, engineered to obey, feels something ancient waking inside him—a light no mortal should touch, and yet he’s drawn to it. Asher, cursed through lifetimes, is breaking under the weight of watching Hunter fall. Love might save him… if Asher dares to pay the price. They were fated to be together, but fate is breaking. As Hell stirs and shadows whisper, they face one impossible choice:. Save the man they love—or stop the monster he’s become. The gates are rattling. The end draws near. And some destinies can’t be rewritten. less