Kohler grunted abruptly. "This is all ancient history. I want to know how this symbol got here."

Langdon took a deep breath. "The symbol itself was created by an anonymous sixteenth-century Illuminati artist as a tribute to Galileo’s love of symmetry—a kind of sacred Illuminati logo. The brotherhood kept the design secret, allegedly planning to reveal it only when they had amassed enough power to resurface and carry out their final goal."

Kohler looked unsettled. "So this symbol means the Illuminati brotherhood is resurfacing?"

Langdon frowned. "That would be impossible. There is one chapter of Illuminati history that I have not yet explained."

Kohler’s voice intensified. "Enlighten me."

Langdon rubbed his palms together, mentally sorting through the hundreds of documents he’d read or written on the Illuminati. "The Illuminati were survivors," he explained. "When they fled Rome, they traveled across Europe looking for a safe place to regroup. They were taken in by another secret society… a brotherhood of wealthy Bavarian stone craftsmen called the Freemasons."

Kohler looked startled. "The Masons?"

Langdon nodded, not at all surprised that Kohler had heard of the group. The brotherhood of the Masons currently had over five million members worldwide, half of them residing in the United States, and over one million of them in Europe.

"Certainly the Masons are not satanic," Kohler declared, sounding suddenly skeptical.

"Absolutely not. The Masons fell victim of their own benevolence. After harboring the fleeing scientists in the 1700s, the Masons unknowingly became a front for the Illuminati. The Illuminati grew within their ranks, gradually taking over positions of power within the lodges. They quietly reestablished their scientific brotherhood deep within the Masons—a kind of secret society within a secret society. Then the Illuminati used the worldwide connection of Masonic lodges to spread their influence."