The Keep
by F. Paul Wilson

Description:
"Something is murdering my men."

The strange choice of words unsettles SS-Sturmbannfuhrer Erich Kaempfer, especially since he has been assigned the task of solving the mystery behind them.

A regular German Army company under Captain Klaus Woermann was assigned to the keep, a small castle in the Dinu pass of the Transylvania Alps, an ancient structure whose inner walls are studded with odd crosses. Woermann's original mission was to guard the pass against attacks on the Ploiesti oil fields to the south. Now his mission is to survive until morning.

The trouble began when two of his men breached a basement wall on their first night here. They were found dead, mutilated, and each night since then, one, sometimes two, of their number are found with their throats torn open.

Now major Kaempfer arrives with an accompaniment of einsatzkommandos--brutal death-camp troopers--to clean up Woermann's mess. But he and his men, the ultimate in human evil, find themselves facing something unthinkable, unknowable, unstoppable. . . An evil greater than their own.