Låter som Brian Lumleys Necroscope-serie. Från bok 1:
But now the necromancer's scalp fairly tingled. For suddenly he sensed a great strength in the vampire - and even greater cunning. Quickly he stepped back - and in that same instant of time the pearly droplet overhead turned scarlet and fell!
It landed on the back of Dragosani's neck just below the high collar line. He felt it. It could have been a drop of moisture fallen from the tree, except it was totally dry here ... The vampire egg needed no ovipositor. Like Quicksilver it had soaked straight through the skin.