Who is the antagonist in "The Destructors" by Graham Greene?

Graham Greene's short story "The Destructors" does not have a traditional antagonist. The story is told from the point of view of a boy named Trevor, and the victim of his rampage is Mr. Thomas.

Greene's short story features a gang of young boys led by Trevor, who set out to destroy a historic house that survived the German bombing of London.

The house belongs to a man named Mr. Thomas, who is the closest thing the story has to an antagonist, although he merely serves as a victim to Trevor's rampage, rather than an opposing force. The protagonists are the boys who destroy the home of Mr. Thomas.