When Renee Marini hears a voice speaking to her spirit one Sunday in church, she has no doubt that almighty God has just given her an assignment. She and her husband, Sal, are to travel halfway around the world to establish a medical clinic at Sons of Thunder, a ministry in Zambia, Africa. What begins as an act of obedience becomes a twenty-five-year (and counting) calling on their lives. With no plan of their own, just taking the next step as God lights each stone, Renee and Sal witness God doing amazing things . . . over and above anything they can ever imagine. In this engaging, thought-provoking memoir, they prove that God can use anybody—you just have to be willing.