From the back of the book:
Blood and Relics is an occult Modern d20 Campaign Model that brings gothic conspiracy in the modern world to life! Blood and Relics focuses on Europe and the Blood War between the servants of light, the Sang Real, and those who serve Shadow, the butchering Caeder. A war fought since the dawn of the time that continues unnoticed by the bulk of humanity. A war not only over lost artifacts of power, but over knowledge, and the soul itself.
Blood and Relics gives you everything you need to bring the Blood War to life: 6 new advanced classes with a dark mystical slant, a Timeline of the secret history of the world, 22 Feats of Profane and Sacred Ritual Magic, and lost Artifacts and Relics of Power pulled from religious and mythological sources.
Whether you chase the shadows or prowl the dark of the crime-ridden underbelly of the modern world, your d20 Modern Campaign will never be the same.