Zurich

Background
Zurich is a banking center of Switzerland.

Gabriel Allon went to Zurich to clean a painting at the request of Julian Isherwood; he found Augustus Rolfe dead in his home. Anna Rolfe finds two safety deposit boxes formerly belonging to her deceased father which contain cash, stolen art and incriminating documents, including Augustus Rolfe's Letter.

Carlo Casagrande met Eric Lange and used a safety deposit box at Becker & Puhl Bank to pay him.

Konrad Becker is suborned by the CIA.

The Office waits for Anton Petrov to come to Becker & Puhl Bank to pick up a payment. They capture him even after he becomes suspicious. Eventually, Office personnel convince Petrov to sign over the contents to Konrad Becker as compensation for the damages suffered during Petrov's capture.