Necroscope

Three great vampires - two Lords and a Lady - fall upon an unsuspecting Earth, a world teeming with defenseless human life. Easy prey for the marauding vampires, mankind will quickly be laid waste, or so they think.
But Earth has defenders. Though the Necroscope is gone, the ESP-powered spy organization he once led still exists.
Destroying minor vampires is all well and good, but the Lords and Lady must be found and eradicated. Without Harry Keogh and his connection to the teeming dead, E-Branch seems crippled, always two steps behind its enemies.
When a young man turns up in the triply locked "Harry's Room" in E-Branch's London HQ, no one quite knows what to make of him - least of all the young man himself. Jake remembers running for his life, thousand of miles from London ... and then nothing.
Now he feels a curious whispering deep within his mind. And his dreams have become very strange, filled with visitations from dead vampires, dead people, and Harry Keogh himself.
If Jake is the new Necroscope, he has to learn - fast!how to control his powers and speak to the dead.