Aeons

Four years after the Nihil and the Oblivion Order has a new threat.
A clay tablet is discovered at an excavation in Knossos, Crete. The text is written in a language that no one can decipher, but the Nazis have come to claim it, and Napoleon sends his own Savants Temporal to the Minoan tomb.
Meanwhile, something ancient is infecting the descendants of the great houses of Europe.
Book four in the best-selling Infinity Engine series.