A thrilling and long-awaited new novel from globally bestselling author Dan BrownAccompanying celebrated academic, Katherine Solomon, to a lecture she's been invited to give in Prague, Robert Langdon's world spirals out of control when she disappears without trace from their hotel room. Far from home and well out of his comfort zone, Langdon must pit his wits against forces unknown to recover the woman he loves.But Prague is an old and dangerous city, steeped in folklore and mystery.