Brian Lumley Deadspeak

Harry Keogh is back from the sheer hell of Starside, the vampire sourceworld, but he has been robbed of his supernatural powers. Stalked by vampires, he is in danger of becoming one himself, undead for ever ... A multinational team of vampire hunters, who rely on the latest technology, scour Europe in the hope they can foil a master vampire's plans to move his nest and expand his troop of thralls. The hunt takes Harry Keogh, formerly a necroscope, into misty Transylvania, where he fights the resurrected Janos Ferenczy in his ruined castle for possession of his lady love, Sandra. But Harry is a mere man again, denied access to the metaphysical Mobius Continuum and no longer able to communicate with the dead. Crumbling in their graves, the teeming dead (the Great Majority) fear for Harry. If the ex-necroscope can't destroy the last of the Ferenczys, that nightmare vampire dynasty, the old threat will rise all over again. E-Branch, Britains paranormal spy organization, and Harry's countless dead friends across the world need Harry to recapture his powers - and so does Sandra, who is in Ferenczy's power.