SADDLE UP FOR BOOK FOUR OF THE HEART-POUNDING, BULLET-BURNING, BIBLE-THUMPING WESTERN SERIES! Some treasures are best left buried... Lost for centuries, a journal belonging to a Spanish Conquistador lists the location of Heaven's Bounty, a treasure of incalculable value-a treasure men are willing to kill for. Bounty hunters, Reno and Sara Bass, are used to hunting men, not treasure. But a chance encounter with a German scholar, and his lovely daughter, Hilde, drags the twins into a subterranean twilight world, which blurs the line between life and death...With a posse of ruthless mercenaries hot on their trail, Reno and Sara face insurmountable odds, and unspeakable terror as they unravel the secrets of a century's old mystery. Best-selling author, A.W. Hart returns with another white-knuckle adventure, filled with shootouts, and the type of gun-blazing western action for which the Avenging Angels series is known.