"Moved by his mother's death and his Irish Catholic family's complicated history with the church, Timothy Egan decided to follow in the footsteps of centuries of seekers to force a reckoning with his own beliefs. He embarked on a thousand-mile pilgrimage through the theological cradle of Christianity, exploring one of the biggest stories of our time: the collapse of religion in the world that it created. Egan sets out along the Via Francigena, once...