Under a Killing Moon(1996)
(The second book in the Tex Murphy series)
A novel by Aaron Conners
A rare and priceless statuette is stolen. From the back streets and alleyways come rumors that an ancient evil has reawakened, foretold by prophecy and worshipped by an obscure blood cult whose origins date back thousands of years. Tex is hired to find the statuette and steps unwittingly into a labyrinth of deceit, manipulation, and murder.
Used availability for Aaron Conners's Under a Killing Moon