Benjamin Trotter: The protagonist, who works as an accountant and is struggling to write a novel. He is still haunted by his first love Cicely, who left for America.

Paul Trotter: Benjamin's brother, a Blairite MP who is part of a group called "The Closed Circle" that seems to be a group of politicians and businessmen looking to benefit themselves at the expense of worker.

Claire Newman: Miriam Newman's sister, who solves the mystery of what happened to Miriam, who disappeared in the previous novel.

Doug Anderton: A left-wing journalist who attended school with Benjamin and becomes disillusioned with his career.

Philip Chase: Another school friend of Benjamin's who runs a publishing house. He offers to help Benjamin publish his novel.

Malvina: A student who befriends Benjamin and also attracts the interest of his brother Paul, causing personal and political problems.

Developed by Perplexity AI

Key topics and themes include:
1. The lives and relationships of the main characters from The Rotters' Club, including Benjamin Trotter, as they navigate adulthood and reflect on their youth.
2. The social and political climate of Britain in the late 20th/early 21st century, with a focus on the rise of New Labour and disillusionment with the political establishment.
3. Nostalgia, regret, and the search for closure in the characters' lives.
4. The interplay between individual lives and broader social/political forces.

Developed by Perplexity AI

The novel is praised for its incisive commentary on British politics and society, particularly its critique of New Labour and the Blair administration. Coe's portrayal of political disillusionment and societal changes resonates with readers familiar with this period.

The novel's nostalgic elements are highlighted, as Coe captures the essence of different decades in British history. His use of satire to address serious issues, such as the erosion of traditional values and the impact of globalization, is often commended.

Coe's narrative technique, which includes intertwining storylines and multiple perspectives, is both a strength and a point of criticism. Some readers find the complexity engaging, while others feel it can be confusing or overly intricate.

The novel is noted for its emotional depth, particularly in exploring themes of friendship, love, and loss. Coe's ability to evoke empathy for his characters contributes to the book's positive reception.

In summary, "The Closed Circle" is generally well-regarded for its astute political commentary, well-developed characters, and emotional depth, though its complex narrative structure and comparisons to "The Rotters' Club" elicit mixed reactions.