Comes a Horseman
by Robert Liparulo is reduced to $0.10 (US Kindle)
The ancients saw Death as a blazing figure on horseback, swift and merciless. Those facing the black chasm often mistook their pounding hearts for the beating of hooves.
Now, two FBI agents pursuing a killer from a centuries-old cult realize they have become his prey. To survive, they must ignore their own fear, their own hearts pounding in their ears...
Pounding like Death, riding a pale horse.