The Cellist

 is the twenty-first book in the Gabriel Allon series. It was published on July 13, 2021.

Moderato
Victor Orlov is murdered by exposure to a Russian nerve agent. Sarah Bancroft, working for Julian Isherwood, is exposed but recovers. Graham Seymour of MI6 learns that earlier in the evening Orlov had been visited by Nina Antonova a Russian journalist working for a newspaper owned by Orlov; Antonova had fled Russia after surviving an attack on her life and moved to Switzerland. After leaving Orlov's home, Antonova flew to Amsterdam, the Netherlands.

Commentary

 * Headlines in the synopsis are from the book.