FBI Agent Gardner Camden is an analytical genius with an affinity for puzzles. He also has a blind spot on the human side of investigations, a blindness that sometimes even includes people in his own life, like his beloved seven-year-old daughter Camila. Gardner and his squad of brilliant yet quirky agents make up the Patterns and Recognition (PAR) unit, the FBI’s hidden edge, brought in for cases that no one else can solve. When DNA links a murder victim to a serial killer long presumed dead, the team springs into action.

On a small island in a remote corner of northwest Scotland lies Maundrell castle, owned by its wealthy namesake family for centuries—until now. Edwina Nunn is shocked to learn a relative she never heard of has bequeathed the castle and its land to her. What awaits Edie and her teenage daughter, Neve, is even more startling, for the castle is home to a multitude of ghosts. Yet there's a strange beauty in the austere architecture and the eerie, bloody waters of Loch na Scáthanna, the Lake of Shadows.

Eddie Winston is 90 years old. He has lived and he has loved, but he has never been kissed. A true gentleman and incurable romantic, Eddie spends his days volunteering at a charity shop, where he sorts through the donations of the living and the dead, preserving letters and tokens of love along the way. And it is here that he meets Bella, a troubled young woman who, at 24 years old, has just lost the love of her life.

Since her husband’s unsolved murder three years ago, Iris Blodgett’s life has unraveled. Awash in grief and buried in debt, she can’t pay her mortgage—and now that she’s lost her job, she has no idea how she’ll provide for her unruly teenage daughter, Ellory. Facing eviction, Iris turns to her new beau, prominent architect Hugh Smoll, for a shoulder to cry on. But the seemingly perfect Hugh offers her something more: an invitation to move in to his mother’s centuries-old mansion while he renovates the property.

A high-end wedding on a private island off the coast of Seattle sounds like something out of a magazine. But for bestselling mystery author Kate Valentine, it’s more like a nightmare. Why Kate agreed to attend her ex-fiancé’s wedding is its own enigma, but she’ll plaster on a fake smile for two nights, with the aid of free champagne, naturally. But when the bride is poisoned and Kate stumbles across a dead body, she finds herself in a real-life mystery that eerily echoes the plot of her latest novel.

When Lexie learns of her father’s death, she doesn’t know how to feel; they’ve barely spoken in the last ten years. And she’s even more confused when she discovers he’s left her half of his holiday travel company, a successful niche business specializing in trips that explore the holiday traditions of cultures all over the world. Meanwhile, the other half of the company has been left to her father’s handsome but bad-tempered young executive, Theo. And the will stipulates that the two of them must find a way to run the company together for a year before they decide its fate.

It is 1951, and at number six Sycamore Street, fifteen-year-old Edie Green is lonely. Living with her eccentric mother and her mother's new boyfriend, she is desperate for something to shake her from her dull, isolated life. So when the popular, pretty Lucy Theddle befriends Edie, she thinks all her troubles are over. Even though Lucy has a secret, one Edie is not certain she should keep. Then Lucy goes missing. Now in 2018, Edie is eighty-four and still living in the same small town, when one afternoon she glimpses Lucy Theddle, still looking the same as she did at fifteen.

Violet Zennor was raised fighting in underground arenas. Ruthless and skilled, she becomes an heiress after her father's death. But her freedom is short-lived. Her father planned to send her to the Darklands, where her stillborn brother was sold. Despite pressure, Violet refuses. After an assassination attempt, she realizes she must confront her father's legacy. Seeking help from Miren, Ellie, and Asher, she prepares for the ultimate journey: into the Darklands, to the Anchorhold. This gripping tale explores a sinister fantasy world where blood is power and magic is a weapon.

Jayne is quiet. She keeps to herself and has no grand expectations for her days. But after a chance encounter with her elderly neighbor, Meredith, Jayne is forced to reevaluate her determination to keep the world at a distance. Meredith's dust-covered home is chaotic and neglected. And slowly, Jayne starts to grasp that Meredith herself is quite lost. She can't seem to remember anything: what she last ate, when she last went out or saw her daughter, or even Jayne's name, despite what are becoming frequent visits.

London, 1923. Newly minted research assistant Saffron Everleigh is the first woman to hold the position at University College of London. When she attends a dinner party for the school, she expects to engage in conversations about the university's large expedition to the Amazon. What she doesn’t expect is for Mrs. Henry, one of the professors’ wives, to drop to the floor, poisoned by an unknown toxin. Dr. Maxwell, Saffron’s mentor, is the main suspect, and evidence quickly mounts.

The lives of three women dramatically collide during the French Revolution: Sofi, a wallpaper factory worker; her sister Lara, a lady’s maid; and a young aristocrat, Hortense. At the factory, the sisters notice something eerie about the intricately illustrated wallpaper: the same mysterious woman appears again and again. But what does it portend?

It is 1951, and at number six Sycamore Street, fifteen-year-old Edie Green is lonely. Living with her eccentric mother and her mother's new boyfriend, she is desperate for something to shake her from her dull, isolated life. So when the popular, pretty Lucy Theddle befriends Edie, she thinks all her troubles are over. Even though Lucy has a secret, one Edie is not certain she should keep. Then Lucy goes missing. Now in 2018, Edie is eighty-four and still living in the same small town, when one afternoon she glimpses Lucy Theddle, still looking the same as she did at fifteen.

They say I’m lucky to be alive. But the only thing I can remember are the faces of my husband and baby. The husband and baby they insist don’t exist … I can hear a door slamming, and the low hum of distant traffic. I struggle to open my eyes, and the panic sets in. I have no memory of who I am, why I’m here, where all this pain is coming from …

At the start of a new century, a shocking murder transfixes Manhattan, forcing bitter rivals Alexander Hamilton and Aaron Burr to work together to save a man from the gallows. Just before Christmas 1799, Elma Sands slips out of her Quaker cousin’s boarding house—and doesn’t come home. Has she eloped? Run away? No one knows—until her body appears in the Manhattan Well. Her family insists they know who killed her. Handbills circulate around the city accusing a carpenter named Levi Weeks of seducing and murdering Elma. But privately, quietly, Levi’s wealthy brother calls in a special favor.

Katy Henry is lost and lonely. A single mother, plagued by fatigue and anxiety, she rarely has time for friends. But when she encounters Sibeal Matthews, all this changes. Sibeal is everything that Katy is not: assured, headstrong and charming. Katy soon finds herself pulled out of her isolation into a fierce friendship. But Sibeal is not all that she seems. Tragedy haunts her, and for all her feistiness, she is startlingly dependent on her brother, Gabriel.

The past three years have been tough for Lucifer’s Creek, Arkansas, a small town quietly tucked away in the Ozark mountains. More than two dozen people have disappeared on the local hiking trails; there one moment, gone the next, not a trace left behind, until their buried bodies are discovered. 17-year-old Dovie doesn’t believe in magic even though she comes from a long line of women who can hear the bones of the dead sing, and for the past few years the bones have been crooning nonstop, calling out to Dovie to dig them up.

Sociology professor Matthew Larkin is barely holding on. After the death of his toddler son, his wife divorced him, his teenage daughter abandoned him, and he lost a job he loved. Landing a rare tenure track position at a small college in southern Minnesota, he’s trying to cope with the disaster his life has become. While driving down an empty highway in the middle of nowhere one gloomy Sunday evening, Matthew gets caught in a hailstorm. Pulling off the road to find shelter, he spies a disturbing sight.

Angelina Lee feels like she doesn’t belong. Newly divorced, and completely unmoored by the sudden and tragic death of her mother, she hopes studying Korean will reconnect her to her roots, but nothing about Seoul feels familiar. Further complicating matters is the resurgence of an alluring man from Angelina’s past, and fellow classmate Keisuke Ono, an irritatingly good looking Japanese American journalist who refuses to leave her alone. What she’ll barely admit, however, is the true reason behind her trip. She’s convinced the key to understanding her mother’s suicide lies in Korea.

Jamie MacFarlane has returned a hero from the Great War but with a stubborn chest wound. The government has sent him to their new thermal springs hospital in California “where it was hoped that the brilliant sunshine, the fruits, and the clean air, the eternal summer of a beneficent land” would heal him. But nothing has worked and with his parents now deceased and no one to care for him, it seems the next step is a camp rife with tuberculosis. Realizing this, Jamie begins his Great Adventure on foot toward the ocean.

They say it’s always beautiful in Bethlam, Nevada. No place you’d rather live. The people are friendly, if a little nosy, and there’s no crime to speak of. Life is pretty perfect. But postal worker Hank Davies has started to suspect something is off in this idyllic little town. And he’s certain of that when he realizes the letters he’s been delivering are just blank pages. Hank isn’t the only one who’s noticed the oddities in Bethlam. One such person knocks on his window in the middle of the night, urging him to investigate his bedroom wall.

Helen Appleby just wants a quiet life. Recently released from prison for the manslaughter of her partner, she's trying to forget her past mistakes—all of them—to rebuild her life and move on. When she decides to open a bookshop, she’s certain this is the perfect new start. Here, amongst the quiet shelves of her shop and between the covers of her books, she can hide away from the real world and begin again. But the past can never stay hidden…

Devon Ferrell and Richard Belmont are engaged, in love, and from two different worlds. Devon is as eager to please Richard’s elite parents as she is to leave the traumas of her childhood behind. After all, the Belmonts are her family now. But being brought into the fold is unbalancing her. There are the piercing stares from Richard’s brother, the confounding whispers about Devon’s moods and health. It’s as if the Belmonts are looking for reasons to reject her, to fill her with self-doubt and put her on edge. It’s working. And no one seems to be on Devon’s side. Not even Richard.

When Evelyn Seaton and her mother are ejected by the bailiffs from their Yorkshire manor house, the blame lies squarely with Evelyn’s father, a gambler and chancer who has left them destitute. Seeking refuge with an elderly aunt in an unfashionable corner of York, their predicament is intensified by the spiteful Lady Violet. Realising that only an income will save them, Evelyn secretly answers an advertisement for a bookshop assistant at the dusty and shambling Lamplighter’s Bookshop. But she is not the only candidate …

California, 2011: Nicole Forbes lives a quiet life in the small seaside town of Coronado with her husband and daughter. She is not expecting a writer to knock on her door asking for her personal insight into the downfall of the biggest British band of the 1980s—unveiling the threads of a life she left behind years ago. The same day, her daughter goes missing and the school claims her aunt picked her up . . . but she doesn’t have an aunt. Convinced of a link between the two, Nicole is forced to revisit long-abandoned memories from her past to protect everything she now holds dear.

When Kit's fiancée orders a DIY seance kit online, he's not sure whether to be relieved or horrified. On the one hand, Faith's nightly rituals seem to provide peace during the most upsetting time of her life, following the sudden and violent deaths of her parents. But on the other hand… Kit begins experiencing increasingly frightening phenomena. Bodiless footsteps stalk him in the halls. A sinister phantom watches him sleep from the foot of the bed.