As the daughter of the King of Assassins, Adina knows better than to trust anyone, especially family. When her grandfather, Sujani, summons her from exile, he gives her two choices: remain an outcast and on the run from her own murderous father, or play the pawn and apprentice to the most powerful vampire in the world. But to train with him, Adina must agree to coexist with her sworn enemy, Sir Elrich, the general who helped slaughter her village.

A dark knight with a dangerous secret...

Sir Elrich fears the other vampires will discover his greatest shame: as a human, he ordered the invasion that massacred Adina's beloved city... and family. Held captive by his own regrets, he longs for absolution from the woman he tried to save on that fateful night nearly a century ago. If Adina finds out who he really is, she'll introduce him to Final Death without a second thought.

A race on the verge of extinction...

Trapped in a deadly chess match between her vengeful father and cunning grandfather, Adina must decide if she can trust Elrich, not only with her life, but with her heart. And the longer Adina spends with him, the more she realizes that he's not the monster she thought him to be. If the knight has his way, they'll all escape with their unlives. But if her grandfather can't harness her magical life force in time to balance the deific energy he seeks to resurrect, it will result in a cataclysmic extermination of the entire vampire race.

Castle of Blood and Secrets is a thrilling paranormal fantasy exploring found family, morally gray characters and forgiveness.