On their first night in Paris, the Gamaches gather as a family for a bistro dinner with Armand’s godfather, the billionaire Stephen Horowitz. But an attempt on the elderly man’s life sends Armand, his wife, Reine-Marie, and his former second-in-command at the Sûreté, Jean-Guy Beauvoir, from the top of the Tour d’Eiffel, to the bowels of the Paris Archives, from luxury hotels to odd, coded works of art. It sends them deep into the secrets Armand’s godfather has kept for decades.

It’s Gamache’s first day back as head of the homicide department, a job he temporarily shares with his previous second-in-command, Jean-Guy Beauvoir. Flood waters are rising across the province. In the middle of the turmoil a father approaches Gamache, pleading for help in finding his daughter. As crisis piles upon crisis, Gamache tries to hold off the encroaching chaos, and realizes the search for Vivienne Godin should be abandoned. But with a daughter of his own, he finds himself developing a profound, and perhaps unwise, empathy for her distraught father.

When a peculiar letter arrives inviting Armand Gamache to an abandoned farmhouse, the former head of the Sûreté du Québec discovers that a complete stranger has named him one of the executors of her will. Still on suspension, and frankly curious, Gamache accepts and soon learns that the other two executors are Myrna Landers, the bookseller from Three Pines, and a young builder. None of them had ever met the elderly woman. The will is so odd and includes bequests that are so wildly unlikely that Gamache and the others suspect the woman must have been delusional. 

When a mysterious figure appears in Three Pines one cold November day, Armand Gamache and the rest of the villagers are at first curious. Then wary. Through rain and sleet, the figure stands unmoving, staring ahead. From the moment its shadow falls over the village, Gamache, now Chief Superintendent of the Sûreté du Québec, suspects the creature has deep roots and a dark purpose. Yet he does nothing. What can he do? Only watch and wait. And hope his mounting fears are not realized.

When an intricate old map is found stuffed into the walls of the bistro in Three Pines, it at first seems no more than a curiosity. But the closer the villagers look, the stranger it becomes. Given to Armand Gamache as a gift the first day of his new job, the map eventually leads him to shattering secrets. To an old friend and older adversary. It leads the former Chief of Homicide for the Sûreté du Québec to places even he is afraid to go. But must. And there he finds four young cadets in the Sûreté academy, and a dead professor. And, with the body, a copy of the old, odd map.

Hardly a day goes by when nine-year-old Laurent Lepage doesn't cry wolf. From alien invasions to walking trees to winged beasts in the woods to dinosaurs spotted in the village of Three Pines, his tales are so extraordinary no one can possibly believe him. Including Armand and Reine-Marie Gamache, who now live in the little Quebec village.

Happily retired in the village of Three Pines, Armand Gamache, former Chief Inspector of Homicide with the Sûreté du Québec, has found a peace he'd only imagined possible. On warm summer mornings he sits on a bench holding a small book, The Balm in Gilead, in his large hands. "There is a balm in Gilead," his neighbor Clara Morrow reads from the dust jacket, "to make the wounded whole." While Gamache doesn't talk about his wounds and his balm, Clara tells him about hers. Peter, her artist husband, has failed to come home. Failed to show up as promised on the first anniversary of their separation. She wants Gamache's help to find him. Having finally found sanctuary, Gamache feels a near revulsion at the thought of leaving Three Pines. "There’s power enough in Heaven," he finishes the quote as he contemplates the quiet village, "to cure a sin-sick soul." And then he gets up. And joins her.

Shadows are falling on the usually festive Christmas season for Chief Inspector Armand Gamache. When Gamache receives a message from Myrna Landers that a longtime friend has failed to arrive for Christmas in the village of Three Pines, he welcomes the chance to get away from the city. Gamache soon discovers the missing woman was once one of the most famous people not just in North America, but in the world, and now goes unrecognized by virtually everyone. As events come to a head, Gamache is drawn ever deeper into the world of Three Pines.

No outsiders are ever admitted to the monastery of Saint-Gilbert-Entre-les-Loups, hidden deep in the wilderness of Quebec, where two dozen cloistered monks live in peace and prayer. They grow vegetables, they tend chickens, they make chocolate. And they sing. Ironically, for a community that has taken a vow of silence, the monks have become world-famous for their glorious voices, raised in ancient chants whose effect on both singer and listener is so profound it is known as “the beautiful mystery.”

On a cold November morning, a jogger runs through the woods in the peaceful Quebec village of Three Pines. On his run, he finds a dead man hanging from a tree. The dead man was a guest at the local Inn and Spa. He might have been looking for peace and quiet, but something else found him. Something horrible. Did the man take his own life? Or was he murdered? 

Chief Inspector Armand Gamache has come to Winter Carnival - not to join the revels but to recover from an investigation gone hauntingly wrong. But violent death is inescapable, even in the apparent sanctuary of the Literary and Historical Society - where an obsessive historian’s quest for the remains of the founder of Quebec, Samuel de Champlain, ends in murder. Could a secret buried with Champlain for nearly 400 years be so dreadful that someone would kill to protect it?

Chaos is coming, old son. With those words the peace of Three Pines is shattered. Everybody goes to Olivier's Bistro - including a stranger whose murdered body is found on the floor. When Chief Inspector Gamache is called to investigate, he is dismayed to discover that Olivier's story is full of holes. Why are his fingerprints all over the cabin that's uncovered deep in the wilderness, with priceless antiques and the dead man's blood?

It is the height of summer, and Armand and Reine-Marie Gamache are celebrating their wedding anniversary at Manoir Bellechasse, an isolated, luxurious inn not far from the village of Three Pines. But they're not alone. The Finney family - rich, cultured, and respectable - has also arrived for a celebration of their own. The beautiful Manoir Bellechasse might be surrounded by nature, but there is something unnatural looming.

Welcome to winter in Three Pines, a picturesque village in Quebec, where the villagers are preparing for a traditional country Christmas, and someone is preparing for murder. No one liked CC de Poitiers. Not her quiet husband, not her spineless lover, not her pathetic daughter - and certainly none of the residents of Three Pines. CC de Poitiers managed to alienate everyone, right up until the moment of her death. When Chief Inspector Armand Gamache, of the Sûreté du Quebec, is called to investigate, he quickly realizes he's dealing with someone quite extraordinary.

Welcome to Three Pines, where the cruelest month is about to deliver on its threat. It's spring in the tiny, forgotten village; buds are on the trees, and the first flowers are struggling through the newly thawed earth. But not everything is meant to return to life.... When some villagers decide to celebrate Easter with a séance at the Old Hadley House, they are hoping to rid the town of its evil - until one of their party dies of fright. Was this a natural death, or was the victim somehow helped along?