Curse of the Cobalt Moon

In THE CURSE OF THE COBALT MOON, teenage hemophiliac, Joshua Puig discovers that he is a half-vampire. He has his life turned upside down when he is confronted with the existence of two types of half-vampires--a non-aggressive group, and another, infused with a much more combative and deadly blood stock. Joshua reluctantly accepts that he belongs to the group with the 'passive' supernatural strains.

A cycle of seven blue moons completes the transformation for Joshua and all like him. Now, aged 16, a foster child living in Miami during the late 1960s, he is rapidly nearing this life changing event.
Leading up to the ""cobalt moon reckoning"" Joshua, his fellow half-vampire, Milagros, and friends are thrust into their own life and death battle against the vengeance-seeking vampire vixen, Alegría Pérez.