Robert Langdon returns in Dan Brown's brilliant new thriller, THE SECRET OF SECRETS, available for pre-order now.

The global bestseller featuring symbologist Robert Langdon, from the author of THE DA VINCI CODE and 'master of the intellectual cliffhanger' (Wall Street Journal) Dan Brown.

Robert Langdon, Harvard professor of symbology and religious iconology, arrives at the Guggenheim Museum Bilbao to attend the unveiling of an astonishing scientific breakthrough. The evening's ...