Blood Moon in Black Hollow

To lock the door against the darkness, he must become the key. Fourteen-year-old Stavy Whitaker thinks the fog in Black Hollow is just weather. He thinks his father, Thomas, is just a quiet tailor. He thinks the shadows in his room are just tricks of the light. He is wrong. When a vampire lord's messenger arrives at their shop, Stavy's world is torn apart. The bolts of fabric are swept away to reveal an armory, and his father is revealed to be the guardian of an ancient, magical bloodline.
Forced to flee into the mountains with a gun-toting warrior and a snarky goblin named Gus, Stavy races toward the Sanctuary of the Veil-the only place safe from the hunting pack. But the greatest threat isn't the army of the dead marching toward them; it's the secret buried in Stavy's own chest. Awakened to a magic that is half-light and half-shadow, Stavy discovers that his survival came at a terrible price.
With a traitor in their midst and a vampire army at the gates, Stavy must choose: reject the monster living inside him and die, or embrace the darkness to save the people he loves. The bloodline cannot hide forever.