Seattle writer Timothy Egan, the National Book Award-winning author of “The Worst Hard Times,” as well as “The Big Burn” about the Great Fire of 1910, is coming to his hometown of Spokane on Oct. 29 to celebrate the release of his latest book with the Northwest Passages Book Club. Egan’s new book strays from the historical journalism for which he has become known. “A Pilgrimage to Eternity: From Canterbury to Rome in Search of a Faith” chronicles Egan’s travels along the Via Francigena, a 1,200-mile medieval route that runs from Canterbury to Rome, where he sought an audience with Pope Francis.