Lucille Teresa Guardino. A woman of many identities. Lucille to her doting mother, Lulu to her devoted husband, Mom to her pre-teen daughter, Lucy to her friends, LT to her co-workers, and Supervisory Special Agent Guardino to the criminals she captures for the FBI's Sexual Assault Felony Enforcement squad. A loving mom and wife, dutiful daughter, consummate professional, and kick-ass federal agent, Lucy is living the perfect life. Until the day she comes up against a predator more vicious than any she's ever tackled....

Dr. Leah Wright returned to her childhood home in rural Pennsylvania with her husband to find peace and quiet, start afresh, and raise her six-year-old daughter Emily. But when she gets home one dark winter night, clutching roses in her hand, she finds her daughter huddled under her bed and her husband’s blood all over the floor.... When Detective Luka Jericho is called to investigate, he’s shocked to learn that the killer left a witness behind - the victim’s young daughter.

Haunted by visions of the future, FBI Special Agent Laura Frost must tap her psychic talent to hunt diabolical serial killers—while keeping it secret from everyone around her. But with a ticking clock and lives on the line, might her visions lead her astray?

It’s the worst possible time for Detective Kerri Devlin to be involved in an all-consuming double-homicide case. She’s locked in a bitter struggle with her ex-husband and teenage daughter, and her reckless new partner is anything but trustworthy. Still, she has a job to do: There’s a killer at large, and a pregnant woman has gone missing. Once Devlin and her partner get to work, they quickly unearth secrets involving Birmingham’s most esteemed citizens. Each new layer of the investigation brings Devlin closer to the killer and the missing woman.

There are people in Edgewater, Oregon, who think that twenty years ago, Rachel Gaston got away with murder. But Rachel still has no idea how a foolish teenaged game turned deadly - or who replaced her soft pellet air gun with a real weapon. When a figure jumped out at her from the darkness, she fired without thinking. By the time she recognized her half-brother, Luke, it was too late.

In the remote forests of Stillwater, Minnesota, you can scream for days and no one will hear you. So when the bodies of two 15-year-old girls are discovered frozen in the snow, Special Agent Nikki Hunt is sure the killer is local: Someone knew where to hide the girls and thought they would never be found. Though Nikki hasn’t been home in 20 years, she knows she must take over the case.

Twenty years ago Emily Mills's father was murdered, and she found his body hanging in the backyard. Her younger sister, Madison, claims she was asleep in her room. Her older sister, Tara, claims she was out with friends. The tragedy drove their mother to suicide and Tara to leave town forever. The killer was caught. The case closed. Ever since, Emily and Madison have tried to forget what happened that night - until an eerily similar murder brings it all back.

A woman is found naked, badly beaten and barely alive in the New Mexico mountains. The shocking discovery plunges Albuquerque Detective Alyssa Wyatt into a case that will test her to the limit. It appears that Callie McCormick is the latest plaything of a shadowy psychopath that leaves a long shadow on the streets of New Mexico - an individual linked to a string of deaths but leaving no evidence. But when Alyssa makes a breakthrough that just might reveal the killer, she unknowingly puts herself in the crosshairs of a brutal maniac - one with an old score to settle.

It was summer in the mountains when five small children vanished from their nursery school picnic. The heat was stifling that day, the tinkle of an ice-cream van in the air.... Three-and-a-half years later, in the dead of winter, the children are returned to their families...one by one. All except for Ivy - the granddaughter of Homicide Detective Kate Wakeland. The other four children say Ivy is dead.

Summer 1980: Despite the local superstition that the Bendy Man haunts the woods, three girls go into a Minnesota forest. Only one comes out, dead silent, her memory gone. The mystery of the Taken Ones captures the nation. Summer 2022: Cold case detective Van Reed and forensic scientist Harry Steinbeck are assigned a disturbing homicide—a woman buried alive, clutching a heart charm necklace belonging to one of the vanished girls. Van follows her gut. Harry trusts in facts. They’re both desperate to catch a killer before he kills again.

Lieutenant Abby Mullen is no stranger to crisis. As the hostage negotiation instructor for the NYPD, she deals with worst-case scenarios every day. Nothing fazes her anymore. That all changes when she gets a call from Eden Fletcher, a fellow survivor of the infamous Wilcox cult. The two haven’t spoken since the night of a tragic, fiery massacre, when their paths diverged. But now Eden needs Abby’s help: someone has kidnapped her son and is demanding a $5 million ransom. As Abby throws herself into the case, she can’t help but wonder why the kidnapper has targeted Eden.

FBI Agent Nell Flynn hasn't been home in 10 years. Nell and her father, Homicide Detective Martin Flynn, have never had much of a relationship. When Martin Flynn dies in a motorcycle accident, Nell returns to the house she grew up in so that she can spread her father's ashes and close his estate. At the behest of her father's partner, Detective Lee Davis, Nell becomes involved in an investigation into the murders of two young women in Suffolk County. The further Nell digs, the more likely it seems to her that her father should be the prime suspect.

Detective Megan Carpenter is no stranger to evil. Escaping the horrors of her old life, she’s vowed never to let anyone hurt her or those she loves ever again. Joining the small police force in Jefferson County’s Port Townsend, Megan is determined to get every victim of a crime the justice they deserve. So when Ruth Turner walks into the Sheriff’s office claiming her sister Ida Watson has been missing for over a month, Megan’s instincts tell her that she needs to do more than just file a report.

Moving to a new city was supposed to be a fresh start for her family. Now it’s a nightmare. Her little girl was supposed to be at day care when Kelsey arrived to pick her up. But they have no record of her daughter ever being there. And to make matters worse, her husband is missing too - he won’t pick up his phone, and the school he supposedly works at says he never accepted their job offer.

Books one through three in the Cassie Quinn series, from Wall Street Journal and USA Today best-selling author L.T. Ryan.