Nighthawk Books in Order

The Nighthawk books move Jim Kelly's crime fiction into wartime Cambridge, and the change of period gives the series a different pulse right away. These are police mysteries set under blackout rules, air-raid sirens, rationing, secrecy, and the steady pressure of the Second World War. The city is still full of colleges and old stone, but it is also crowded with evacuees, factory workers, soldiers, researchers, and people trying to carry on after dark.

At the center is Detective Inspector Eden Brooke, a veteran of the First World War whose injuries and habits make him a natural creature of the night. He works when most people are indoors, and he solves cases by moving through a city half hidden by blackout cloth and official silence. Brooke is smart, patient, and quietly stubborn. He is also helped by a loose band of fellow nighthawks, night workers and watchers who know Cambridge after dark better than anyone.

War changes the rules.

Beginning with The Great Darkness, the series uses murder as a way into bigger wartime worries. The first blackout hides two deaths. The Mathematical Bridge links the drowning of an evacuee to an attack on a local factory. The Night Raids turns a bombed street and a missing munitions worker into a manhunt. In The Cambridge Siren and The American Suspect, bomb shelters, sabotage, airfields, and the arrival of American forces widen the canvas again. These books never forget the human cost of the war, but they stay focused on the investigation in front of Brooke.

Cambridge is not just the backdrop.

Kelly makes the city feel lived in. The river, the colleges, the workshops, the shelters, the pubs, and the ordinary terraces all matter. So do the tensions that war sharpens: class, religion, bureaucracy, fear, and prejudice. Brooke is often under pressure to settle for the neat official answer, especially when the authorities want to protect morale or keep military work moving. He rarely takes the easy version for long.

The tone sits somewhere between classic detective fiction, police procedural, and historical mystery. There are puzzles, but there is also a strong sense of daily wartime life, who has power, who gets overlooked, and who is asked to keep quiet for the greater good. Brooke is a thoughtful guide through all of it, and the night setting gives the series a shadowy, watchful feel that fits the title perfectly.

If you want crime fiction with atmosphere, history, and a detective who has to work around both murder and wartime secrecy, this is a rewarding series to sink into. It is best to begin with The Great Darkness, then read forward, because the war years move on and Brooke's world changes with them.