Langdon and Vittoria look around the Pantheon, checking the recesses in the walls. Langdon remembers a lecture he delivered about religion’s tendencies to borrow concepts from previous religions. A guide starts to tell Langdon facts about the Pantheon, and Langdon is irritated by the interruption; he already knows all that the man is saying.

Vittoria examines Raphael Santi’s tomb. She realizes something and calls out to Langdon—panicked.

Vittoria grabs Langdon. She realized from the plaque that Raphael was relocated there a century after the poem was written. They ask the confused guide where Raphael had been buried before. They work out that it must be a tomb that he designed rather than one he was buried in. They work out that the poem must refer to the demon’s hole, or crypt, at Chigi Chapel. The hunch seems to be confirmed by the guide’s description of the unusual pyramidal structures within the Church and the fact that it used to be called Capella della Terra—Chapel of the Earth. Pyramids are made of triangles, which are Illuminati symbols, and the earth is one of the four elements.

Vittoria calls Olivetti and tells him they were wrong, and his men need to move to the Chigi Chapel a mile away.