The renowned symbologist travels to Prague to attend a landmark lecture by Katherine Solomon, a leading noetic scientist and his new romantic partner. Katherine is poised to unveil a controversial manuscript that could revolutionize our understanding of human consciousness-and upend centuries of accepted belief.
But before the lecture can begin, a shocking murder shatters the event, and Katherine vanishes without a trace, along with her manuscript. Langdon soon finds himself pursued by a shadowy organization and a terrifying figure drawn from Prague's oldest legends.
As the chase stretches from the cobbled streets of Prague to the heart of London and the skyscrapers of New York, Langdon races to find Katherine-and the secrets she was about to reveal. In a high-stakes journey through cutting-edge science and ancient mysticism, he uncovers a hidden truth that could forever alter humanity's understanding of the mind.