Vayentha waits on the Ponte Vecchio, a bridge she assumes Langdon and Sienna will cross if they find a way past the blockade. She spots Brüder’s drone and worries he will find the pair first as it lowers under the Gardens’ wall.

Langdon and Sienna slip deeper into the cavern until they hit a dead end. The drone deactivates at the entrance, and a trio of soldiers begin descending toward them. One stands guard while the other two peel off and knock on the gray door.

Ernesto, a guard, answers the door and confirms he will let no one through and that there are no other secret exits out of the Gardens.

The soldiers get word that a group of tourists claim to have seen Sienna and Langdon asking after the western costume gallery, and two of them leave. Langdon and Sienna overhear the one remaining, Brüder, speaking on the phone and confirming tracking them via Langdon’s logging into his Harvard account on Sienna’s computer. Sienna seems momentarily betrayed by this but says nothing. Brüder also confirms that he knows Sienna’s name. Brüder eventually leaves, and Sienna leads Langdon back to the locked door. She knocks, and Ernesto opens, but he is immediately incapacitated by Sienna via her application of pressure points.