A Coldness in the Blood — Fred Saberhagen

When the vampire Dickon and his human partner appear in the middle of the night frightened for their lives, the powerful vampire Matthew Maule offers them protection. They carry with them a small Egyptian statue of great value and many secrets.

In the morning, Matthew wakes to discover that Dickon's human friend has been murdered, the vampire has gone missing, and their statue has been smashed to pieces.

The statue was no ordinary artifact, but one of six replicas. And only one contains a gem in the center, a stone of unimaginable magical power that could spell the end of humanity if it fell into the wrong hands.

Matthew must find the statue and prepare himself for a final showdown against the evil stalking him at every turn.