Katherine Solomon reaches Prague Castle on foot and is overwhelmed by its scale. She navigates into St. Vitus Cathedral, asks about the “door with seven locks,” and is directed to Wenceslas Chapel.

Inside the chapel, Katherine finds the royal sarcophagus of Wenceslas and learns it is the gateway to the Bohemian Crown Jewels, protected behind the famed seven-lock door. She examines the heavy metal door, counts the seven keyholes, and tests it, confirming it is locked. With no sign of Robert Langdon, she waits uneasily in the main sanctuary and worries something has gone wrong.

Langdon suddenly appears, relieved to find Katherine, and jokes that opening the seven-lock door would require seven high-level calls. He confirms his “paperwork” is finished but becomes distracted by the cathedral pulpit and asks Katherine to sit while he shows her something.

From the pulpit, Langdon begins dramatically “reading” passages that Katherine recognizes as her own scientific manuscript. Katherine rushes up and discovers a stack of her laser-printed pages placed atop the Bible; Langdon reveals he never destroyed the manuscript after all.

Langdon explains he burned only her lengthy bibliography, supplemented the fire with blank vellum pages to generate smoke, and hid the rest of the manuscript in the library to keep it from being confiscated and to prevent Katherine from having to lie during interrogations. Katherine cycles through relief and frustration, then embraces him; as the bells toll overhead, she confesses she loves him.