“Masterful...The Fifth Gospel is that rare story: erudite and a page-turner, literary but compulsively readable. It will change the way you look at organized religion, humanity, and perhaps yourself.” —David Baldacci
“A gripping thriller rich with human drama and forbidden knowledge.” —Lev Grossman
A lost gospel, a contentious relic, and a dying pope’s final wish converge to send two brothers—both Vatican priests—on an intellectual quest to untangle Christianity’s greatest historical mystery.
Ten years ago, Ian Caldwell and Dustin Thomason’s The Rule of Four became a literary phenomenon that sold nearly two million copies in North America and was hailed by critics as “ingenious…profoundly erudite” (The New York Times), “compulsively readable” (People), and “an exceptional piece of scholarship” (San Francisco Chronicle)....