A Big Boy Did It And Ran Away by Chris Brookmyre

In this thrilling and darkly comedic novel, a seemingly ordinary teacher, Raymond Ash, finds himself entangled in a web of chaos and danger when he discovers that his old school friend, Simon Darcourt, presumed dead, is actually alive and leading a double life as a notorious terrorist. As Raymond is reluctantly pulled into a world of crime and conspiracy, he must navigate a series of unexpected twists and turns, all while trying to protect his family and uncover the truth behind Simon's deadly plans. With a blend of humor, suspense, and social commentary, the story explores themes of friendship, betrayal, and the blurred lines between good and evil.