Several weeks ago, Chief Inspector Armand Gamache and his team uncovered and stopped a domestic terrorist attack in Montréal, arresting the person behind it. A man they called the Black Wolf. But their relief is short-lived. In a sickening turn of events, Armand has realized that plot was just the beginning. Perhaps even a deliberate misdirection. One he fell into. Something deeper and darker, more damaging, is planned. Did he in fact arrest the Black Wolf, or are they still out there? Armand is appalled to think that his mistake has allowed their conspiracy to grow, to gather supporters. To spread lies, manufacture enemies, and feed hatred and division. Still recovering from wounds received in stopping the first attack, Armand is confined to the village of Three Pines, leading a covert investigation from there.

1912: Harry Widener, a promising and passionate book collector, boards the Titanic holding tight to a priceless volume he’s just purchased in London. After catastrophe strikes the ship, Harry’s last known words are that he must return to his cabin to retrieve his latest treasure. Neither the young man nor the book is ever seen again. Honoring her son’s memory, Harry’s mother builds the Harry Widener Memorial Library at Harvard to house his extensive book collection and ensure his legacy. Decades later, Violet Hutchins, a Harvard sophomore recovering from her own great loss, is working as a page at the Widener Library. When mysterious things begin happening at the library, Violet wonders if Harry Widener’s ghost is trying to communicate with her, seeking Violet to uncover a long-buried secret that Harry took with him to the grave. 

Five of the most prominent book influencers in the US make up an exclusive virtual book club that’s the envy of the online book world. Once a month, they get on a video call to sip cocktails, chat about social media campaigns and book events, and discuss their monthly book club pick. Until one meeting, when all of their screens freeze, and they listen to gut-wrenching screams as one of them is brutally attacked. As the investigation unearths secrets each of them needs to keep buried, the jealousies, hidden resentments, and trouble in their personal lives begin to surface. The remaining four women are suspicious of each other, pointing fingers to take the heat off their own indiscretions. But if they want to figure out who killed their friend, they need to band together and put past hurts behind them. Or one of them will be next.

When Samantha Payne’s grandfather dies, she figures she won’t even get a mention in the will. After all, she hasn’t seen him in 14 years, not since her father took his own life after being accused of murdering a child at their lakefront cottage. Her grandfather always insisted that her father was innocent, despite Sam having caught him burying the child’s body. But when she does attend the reading of the will at the behest of her aunt, she discovers that her grandfather left her the very valuable lakefront property where the family cottage sits. There’s one catch: Sam needs to stay in the cottage for a month. To finally face the fact that she was wrong and her father was innocent, in her grandfather's words. When her aunt goes missing a couple of days into their stay, Sam begins to question everything again.

London, 2024: American expat Margo Reynolds has been hired to find a mysterious book published over a century ago. With a single copy left in existence, it has a storied past shrouded in secrecy. Havana, 1966: Librarian Pilar Castillo has devoted her life to books. So when a neighbor fleeing Cuba asks her to return a valuable book to its rightful owner, Pilar will risk everything to protect the literary work entrusted to her care. Boston, 1900: For Cuban school teacher and aspiring author Eva Fuentes, traveling from Havana to Harvard to study for the summer is the opportunity of a lifetime. It leaves her little time to write, but a moonlit encounter with an enigmatic stranger changes everything. The story that pours out of her is one of forbidden love, secrets and lies. Although Eva cannot see it yet, the book will be a danger and salvation for the lives it touches.

The Hill is the kind of place where everyone wants to live: luxurious, exclusive and safe. But now someone is breaking and entering these Cheshire homes one by one, and DS Leo Brady suspects that the burglar is looking for something, or someone, in particular. Over the border in Wales, DC Ffion Morgan recovers the body of an estate agent from the lake. There's no love lost between Ffion and estate agents, but who hated this one enough to want her dead --- and why? As their cases collide, Ffion and Leo discover that people will pay a high price to keep their secrets behind closed doors.

Throughout her life, Sybil Van Antwerp has used letters to make sense of the world and her place in it. Most mornings, around half past 10, Sybil sits down to write letters --- to her brother, to her best friend, to the president of the university who will not allow her to audit a class she desperately wants to take, to Joan Didion and Larry McMurtry to tell them what she thinks of their latest books, and to one person to whom she writes often yet never sends the letter. Sybil expects her world to go on as it always has. But when letters from someone in her past force her to examine one of the most painful periods of her life, she realizes that the letter she has been writing over the years needs to be read and that she cannot move forward until she finds it in her heart to offer forgiveness.

When a British Intelligence informant in Portugal mysteriously disappears just after hinting that he has vital information about German plans that could tip the balance of World War II, typist-turned-field agent Evelyne Redfern and her dashingly irksome partner, David Poole, are sent headed to Lisbon to find him. Once they land, Evelyne and David aren't even able to leave the airport, before she discovers one of their fellow aeroplane passengers murdered and uncovers a diary with a clear link between the victim and their missing informant. With their mission in jeopardy before it can truly begin, Evelyne and David fight to keep their cover intact as they descend deeper into the shadows that surround Lisbon’s glittering collection of wealthy expats and dangerous spies.

In a quiet suburban neighborhood in upstate New York, single mom Kelly Gibson is slain in her home --- the victim of a rage killing. Right away, Sheriff Bree Taggert has three persons of interest: an angry soon-to-be ex-husband, a furtive rebound boyfriend, and an obsessive neighbor. But as Bree and investigator Matt Flynn work together to narrow the field, there’s a shocking twist in the case: a second woman is murdered in the same brutal fashion. While investigating, Bree is attacked and left for dead. When another woman is kidnapped, Bree and Matt must act quickly to unravel the deceptions in Kelly’s life and death and find a killer before someone else dies.

Anne Bishop seems like a typical Vassar sophomore --- one of a popular group of privileged WASP friends. None of the girls in her circle has any idea that she’s Jewish, or that her real first name is Miriam. Pretending to be a Gentile has made life easier. As Anne, she no longer suffers the snubs, snide remarks and daily restrictions Jews face. But her secret life is threatened when she becomes fascinated by a girl not in her crowd. Delia Goldhush is sophisticated, stylish, brilliant and unashamedly Jewish. Knowing that her growing closeness with Delia would be social suicide if it were discovered, Anne keeps their friendship quiet. Delia seems to understand --- until a cruelty on Anne’s part drives them apart and sends them scattering to other corners of the world, alone and together.