From Deepak Chopra comes a spiritual adventure story about Christ's forgotten disciple, an ancient mystery school, and the timeless power of faith. Before suddenly disappearing from her cloister, Sister Margaret Thomas Mc Geary leaves behind a solid gold reliquary, which her niece Mare discovers tucked away among Sister Margaret's belongings. "This is from the thirteenth disciple," a handwritten note says, "follow it where it leads," setting into motion a millennia-old mystery about the final - and truest - disciple of Christ. As Mare searches for her lost aunt, she begins to realize that the reliquary contains a secret that could very well change the history of Christianity and forever redefine what it means to be a person of faith. Joining Mare in her quest is a ragtag and reluctant group of sinners and skeptics- Frank, a journalist eager to break the story; Lily, an eccentric mother of two who knows more than she's letting on; Galen, a misanthrope with a hidden past; and Jimmy, a hospital orderly whose faith sustains him even in the darkest hours. Together, they try to make sense of the reliquary and its mysterious contents. But are they ready for what they learn about the reliquary or themselves? Weaving together masterful storytelling, page-turning intrigue, and biblical and religious scholarship, Deepak Chopra reveals illuminating truths about Jesus, his followers, and, ultimately, belief itself. Like his previous New York Times bestselling novels Buddha and Jesus, The 13th Disciple invites readers to know and experience religion in a new and breathtaking way.