The Blood Moon and the Black Mountain of Sorrow (en Inglés) - R A Murdock

With the heart of a vampire and the blood of Karne, the black dragon who is pure evil, Razien must grow up fighting the evil within himself. When he reaches the age of eighteen, Razien is called to the black dragon and he must answer, or Karne will punish him. With only the training his father had given him growing up and a few companions to join in his journey, he searches for the black dragon's lair.

As he searches for the lair, Razien learns many things about his past and his destiny that prove to him he is the only one of his kind. With the help of Loveaya, the spirit of the earth, he finds power within himself to help fight the darkness in his blood. The half-vampire, half-dragon being finds many obstacles that he must overcome to hone his senses. With his friends by his side and Loveaya guiding him spiritually, Razien feels he is ready to face the nightmare that has haunted him his whole life.

"This first book lays the mythology for future adventures but feels less like a prelude and more like a legend in its own right, with memorable characters and dangerous moments. Readers who sink their teeth into this story will be immersed and ready for the full impact of future entries in this saga without feeling like they are simply studying and worldbuilding for the story ahead." - US Review of books