How It All Goes Down
- Back at the train station, Sophie makes Langdon buy two tickets to Lyon using his credit card.
- Ah ha. It's all part of the ruse. The cabbie she'd paid earlier is sitting outside a back entrance, waiting for them. The tickets are to throw off the cops.
- As they ride out into the country, they puzzle over the key some more.
- Langdon smells rubbing alcohol, and realizes that Saunière had written on the key in blacklight ink as well. An address: 24 Rue Haxo.
- They instruct the taxi to head there.
- Sophie realizes that she needs to fill Langdon in on whatever she knows, but first she wants to hear all about the Priory of Sion.