When Harvard symbologist Robert Langdon arrives in Prague, he expects a quiet academic conference. Instead, he finds himself entangled in a web of murder, myth, and forbidden knowledge that stretches back to the court of Emperor Rudolf II, a ruler obsessed with alchemy, angels, and the secret of creation itself.

At the heart of the mystery lies Dr. Katherine Solomon, a brilliant scientist whose research on consciousness and the power of thought has shattered the boundary between science and mysticism. When her manuscript vanishes and a professor is found dead his body marked with ancient Hebrew symbols Langdon is thrust into a race through the fog-shrouded streets, cathedrals, and crypts of Prague.

Each clue draws him deeper into a hidden lineage of knowledge linking the Golem legend, Kabbalistic alchemy, and the architecture of human reality. As the past and present collide, Langdon must confront a terrifying possibility:

What if thought itself is the force that shapes the world?

Donal E. Walker is a retired psychologist and consultant, born and raised in Portland, Oregon. With over three decades of experience studying the complexities of the human mind and behavior, he has dedicated his career to understanding how thought, belief, and perception shape reality. After years of private practice and corporate consulting, Walker turned his lifelong fascination with consciousness and symbolism into storytelling.His writing combines psychological insight with historical and philosophical depth, exploring how science, faith, and human intention intertwine. When he isn't writing, he enjoys quiet walks through nature, reading ancient philosophy, and mentoring young thinkers in the art of mindful living.