World War I Books in Order

The Recommended Reading Order

Anne Perry's World War I series, featuring the Reavley family, is a tightly serialized historical mystery saga. Because the overarching mystery and character developments run continuously from the outbreak of the war to its final days, there is only one correct way to read this series. You must read the books in chronological order, which also matches their publication order. Each novel covers one specific year of the conflict, charting the progress of both the global war and the family's private battle against a hidden traitor.

1. No Graves As Yet (2003) – Set in 1914. The series opens in the idyllic summer before the war, where a sudden family tragedy pulls the Reavleys into a web of espionage.
2. Shoulder the Sky (2004) – Set in 1915. The war is fully underway, shifting the action to the brutal, muddy trenches of Flanders and the high-stakes pressure of London's intelligence offices.
3. Angels in the Gloom (2005) – Set in 1916. The story moves to the home front, focusing on a critical scientific invention, domestic betrayal, and the rising threat of German U-boats.
4. At Some Disputed Barricade (2006) – Set in 1917. Morale on the Western Front is at an all-time low, pushing the characters to their breaking points amid mutiny and intense military tribunal dramas.
5. We Shall Not Sleep (2007) – Set in 1918. The final months of the war bring the thrilling resolution to the family's long search for the mastermind behind their personal tragedy.

Who are the Reavley Siblings?

The heartbeat of the series is the Reavley family. Following their parents' sudden and suspicious deaths, each sibling is pulled into the war effort in a different capacity, allowing readers to witness the conflict from multiple perspectives:

• Joseph Reavley: A Cambridge professor of biblical languages who becomes an Army chaplain. Stationed on the Western Front, he experiences the visceral horrors of trench warfare and struggles to maintain his faith while offering comfort to dying soldiers. His perspective provides the moral and spiritual core of the series.
• Matthew Reavley: An officer in the Secret Intelligence Service (SIS) based in London. Matthew is tasked with the direct, dangerous work of identifying internal traitors and tracing the conspiracy that killed his parents, navigating the shadowy corridors of British political power.
• Judith Reavley: A fiercely independent young woman who drives an ambulance for the military on the battlefields of Flanders. Judith's frontline role exposes her to the raw physical trauma of the war, testing her resilience and forcing her to make difficult moral choices to save lives.
• Hannah Reavley: The eldest sister who remains at home in Cambridgeshire as a wife and mother. Through Hannah, Perry highlights the quiet resilience, anxiety, and changing roles of women on the British home front.

The Overarching Mystery: The Peacemaker

Unlike standard episodic detective series where each mystery is neatly solved by the final page, this series is driven by a single, massive conspiratorial arc: the search for the "Peacemaker." In 1914, the Reavley parents are killed in a suspicious car crash while carrying a highly sensitive document. This document outlines a secret treaty designed to dismantle the British Empire and establish a new global order under a shadowy figure known only as the Peacemaker. Throughout all five books, Matthew, Joseph, and Judith work together across the front lines and London offices to unmask this traitor. Because of this continuous plotline, skipping books or reading them out of order will ruin the mystery and make the character dynamics difficult to follow.

Detailed Book-by-Book Breakdown

No Graves As Yet (1914)

In the peaceful summer of 1914, Joseph Reavley's quiet life as a Cambridge don is shattered when his parents die in a car accident. His brother Matthew reveals that their father, a retired politician, had discovered a devastating plot to betray Britain to Germany. The document containing the proof is missing, and the outbreak of the war complicates their search. This book establishes the domestic tone of pre-war Britain and introduces the core family members as they realize they are targets of a powerful, invisible enemy.

Shoulder the Sky (1915)

The action shifts to 1915. Joseph is now a chaplain in the mud-soaked trenches of Ypres. When an aggressive war correspondent planning to expose the shocking reality of the front line is found murdered in no-man's-land, Joseph must investigate. The murder appears to be an internal cover-up, and the clues point back to the Peacemaker's ongoing plot. Meanwhile, Matthew is back in London, trying to keep Britain focused on the war while the Peacemaker tries to force a premature, compromised peace.

Angels in the Gloom (1916)

By 1916, Joseph is back in Cambridgeshire recovering from injuries sustained at the front. The war of attrition drags on, and new technology becomes a weapon of survival. When a scientist working on a vital weapon to counter German U-boats is murdered, suspicion falls on those close to the project. Joseph, Judith, and Matthew must identify a local traitor who is leaking secrets to the enemy, showing how the paranoia and trauma of the war have infiltrated even the quietest English villages.

At Some Disputed Barricade (1917)

Set during the dark days of 1917, this installment highlights the despair of the soldiers. On the battlefields of France, Joseph finds himself defending a group of soldiers accused of mutiny after the suspicious death of a brutal officer. Judith becomes deeply involved in helping the men, putting her at odds with military authorities, while Matthew uncovers evidence that the Peacemaker is actively using the soldiers' despair to orchestrate a collapse of British resolve.

We Shall Not Sleep (1918)

The series reaches its climax in the autumn of 1918. With the Armistice finally in sight, the murder of a nurse in a battlefield hospital brings the family's search to a head. Matthew is framed for the crime, forcing Joseph and Judith to race against time to clear his name. The search leads to a final, dramatic confrontation with the Peacemaker, whose identity is finally revealed, bringing a satisfying end to the long conspiracy that began before the first shots of the war were fired.

What to Know Before You Start

Anne Perry's World War I series is highly praised for its historical accuracy and its refusal to romanticize the conflict. Perry was inspired to write the books by her grandfather's experiences as a chaplain during the Great War. Readers should prepare for a dark, atmospheric, and emotionally heavy read. The books do not shy away from the horrific realities of trench warfare, the trauma of early combat medicine, or the psychological toll of prolonged conflict. It functions as both a historical thriller and a deep character study of a family undergoing profound change.