Thirty years ago, David Remnick published “The Devil Problem,” a profile of the religion professor Elaine Pagels—a scholar of early Christianity who had also, improbably, become a best-selling author. Pagels’s 1979 book, “The Gnostic Gospels,” was scholarly and rigorous, but also accessible and widely read. She changed how a lot of people thought about the Bible. Pagels went on to write “The Origin of Satan,” as well as works on Adam and Eve and the Book of Revelation. Pagels's upcoming book, “Miracles and Wonder: The Historical Mystery of Jesus,” is a summation of her lifetime of study, as it takes on some of the central historical controversies of Christianity, including the stories of immaculate conception and the resurrection. The daughter of a scientist, Pagels “was living in a world in which science defines what you can see, and there’s nothing else.” Then, as a teen-ager, she was born again after seeing the evangelist Billy Graham preach. “This was about opening up the imagination,” she tells Remnick. “I did feel like the sky opened up.” Her time in the evangelical community was brief, but her fascination with belief never faded. “I have a sense that what we think of as the invisible world has deep realities to it that are quite unfathomable.”