Do I need to read The Spy Who Came in from the Cold first?

It helps a great deal. The novel revisits that book's operation and characters, and much of its impact depends on knowing what happened.

Is this a George Smiley novel?

Smiley appears only at a distance. The lead is Peter Guillam, his former colleague, and the story is told from Guillam's point of view.

How does it compare with le Carré's earlier books?

It is shorter and more retrospective than Tinker Tailor Soldier Spy, with less plot and more reckoning. Most reviewers rank it below his peak novels but value it as a late-career coda.

It is short, but it moves through interviews and memory rather than action. Expect a quiet, talk-driven pace.

What is the book about?

A retired intelligence officer is called back to account for an old operation whose agents were killed, forcing him to weigh loyalty against the service's interests.