Robert Langdon, esteemed professor of symbology, travels to Prague to attend a groundbreaking lecture by Katherine Solomon – a prominent noetic scientist with whom he has recently begun a relationship.

Katherine is on the verge of publishing an explosive book that contains startling discoveries about the nature of human consciousness and threatens to disrupt centuries of established belief.

But a brutal murder catapults the trip into chaos, and Katherine suddenly disappears along with her manuscript.

Langdon finds himself targeted by a powerful organization and hunted by a chilling assailant sprung from Prague’s most ancient mythology. As the plot expands into London and New York