Grave Mercy (Super Bolan Series #144) by Don Pendleton
The horror of the Ton Ton Macoute has returned. At its helm, a mastermind of religious fanaticism and military strategy. This Haitian madman commands an army of machete-wielding hordes, stripped of their humanity by powerful toxins. He backs his alchemy with automatic weapons and Jamaican gangsters. And he's plotting a swift, brutal invasion of a troubled island. Once the dead past is brought back to life, he will resume his place as the power behind the throne.
Mack Bolan witnessed this madman's horror show up close. The crazed leader's death warrant was signed when the first victim fell. Now the zealot is about to experience the Executioner's trademark version of hellfirerighteous, hardcore and everlasting.