Langdon and Sophie enter the vast, columned cavern of Westminster Abbey, nearly deserted in the off season. With no clear idea of where to find Newton’s tomb and confronted by a labyrinth of alcoves, burial chambers, and niches, they look for a docent to direct them.

The Teacher, meanwhile, is already at the tomb, studying it, trying to decipher the final clue when he notices Langdon and Sophie waving to a docent. He steps furtively out of sight. He holds both the cryptex and the revolver; although it set off the Abbey’s metal detector, he was able to smuggle it in by virtue of his official status. Having no luck with the password, he decides to trick Langdon into helping him.

Langdon and Sophie approach the tomb, also trying to solve the riddle. Newton’s tomb includes a huge orb on which are engraved constellations, stars, and planets, but which specific orb is missing is still unclear. Langdon feels certain that the final clue has nothing to do with astronomy but is more symbolic. Suddenly, Sophie notices a note left on the tomb:

I have Teabing.

Go through Chapter House,

out south exit, to public garden (433).

Langdon is relieved that Teabing is still alive and that Teabing’s captor hasn’t figured out the password yet.