Legion of the Dead — Hugh B. Cave

Gary Connoway had heard rumors of a mysterious Cult of Death even before he arrived in San Mario, but nothing could have prepared him for the unspeakable evil that stalked him now. He had come to the primitive Caribbean island for rest and instead found love in the arms of Juana, a beautiful island girl. Now in the jungle they both faced a relentless, oncoming horror that only the awesome power of voodoo could have raised and only the power of voodoo could stop.