The audiobook bundle includes the first three books in the mystery-thriller series: The Numbers Killer, Pretty Little Girls, and When They Find Us.

When a private plane whisks CDC epidemiologist Madeline Hamilton to Washington, DC, for an urgent medical symposium, she knows something significant is underway - but she doesn’t expect to face the most disturbing medical mystery of her career. A debilitating neurological toxin has stricken the children of several political families, and one of them is the son of US President Anna Moreland.

In Los Angeles, FBI counterterrorism agent Quinn Traynor receives an urgent call from CDC agent Madeline Hamilton. She’s discovered the first victim of a lethal, unfamiliar virus. Their joint investigation uncovers an imminent bio-terror attack, and their only hope is to identify the terrorists carrying the disease. With just two days remaining before it’s too late, the FBI and the CDC race to prevent a pandemic. The ensuing nightmare will hit closer to home than they ever anticipated, and one of them will pay an unimaginable price for protecting the country.

Two days ago, the Wilson family checked into the imposing, glass-fronted Lodge, surrounded by snow and perched perilously on the edge of a cliff looking out to a gray sea. Not everyone was looking forward to the family get-together. But mother-in-law Angela insisted the winter trip would help heal their rifts....

It’s been five years since Detective Amanda Steele’s life was derailed by the tragic death of her young daughter. The small community of Dumfries, Virginia, may have moved on, but Amanda cannot. When the man who killed Lindsey is found murdered, she can’t keep away from the case.

An eight-year-old girl, Chelsea Compton, is missing in Pine Valley, California, and for Detective Katie Scott it’s a cruel reminder of the friend who disappeared from summer camp 20 years ago. Unable to shake the memories, Katie vows she won’t rest until she discovers what happened to Chelsea. But as Katie starts to investigate, the case reveals itself to be much bigger and more shocking than she feared. Hidden deep in the forest she unearths a makeshift cemetery: a row of graves, each with a brightly colored teddy bear.

ER doctor Sloane Marks is shattered when she learns her husband Ethan slept with his partner at Seattle Homicide. She considers leaving him and joining The One, having gone to college with the popular dating app’s billionaire founder, Brody Carr. But at forty-two, Sloane feels she has no choice but to forgive Ethan if she wants a chance at creating the family she never had.

When Detective Madison Harper arrives at a remote summer camp in Shadow Falls, Northern California, her heart breaks for Jenny, the sweet little girl last seen splashing in the lake with her friends before she vanished. Peering into the silent cabins filled with rows of neatly made beds, Madison knows this idyllic place is hiding a terrible secret.

When Penny Matthews, a seven-year-old girl with blonde curls and a gap-toothed smile, goes missing in the Appalachian mountains, Detective Ellie Reeves is called straight to the scene. According to Penny’s parents, their daughter vanished after a picnic by the creek. All that’s left behind is a pink friendship bracelet etched with “Penny”.

From USA Today best-selling author Audrey J. Cole—the first five books in the Emerald City Thriller series.

The beautiful young woman is perfectly still, curled up in the trunk of the car, her long dark hair hiding her face. Her cotton blouse has ridden up a little, revealing two small dots an inch apart on her back. Just like the others. Guilt has kept FBI Agent Tori Hunter away from her home in Manchester Bay, Minnesota for 20 years, ever since her twin sister disappeared on the Fourth of July, when the girls should have been together. But when she receives an anonymous newspaper clipping about another missing girl, Genevieve, Tori is dragged back to the past.

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 Beth Katz’s serial killer father who made her like she is: a successful FBI agent and an unstoppable vigilante dedicated to hunting down murderers who have evaded capture. Beth will push herself to the limits to deliver justice. Even if it means killing those who deserve to die.

Quinn Maguire has a stable life, a fiancé, and what she thinks is a clear vision for her future. All of that comes undone by her mother’s deathbed confession - the absentee father Quinn spent thirty years resenting is not her real father at all. With that one revealing whisper, Quinn embarks on a journey to Maui, her mother’s childhood home, a storied paradise that holds the truth about her mother’s past and all its secrets Quinn is determined to uncover.

Wanted: A picturesque new town, a fresh start, and a much-needed escape from the constant reminder that the world is still full of bad guys. For FBI agent Olivia Knight, that perfect place is Belle Grove, a charming small town in Northern Virginia, a place hidden by lush greenery and away from the big city. But when Olivia finds a young girl malnourished and disheveled outside her home, she is thrown into a disturbing case. In order to catch the culprit and find the missing children in her new hometown, Olivia must dive deep into the twisted mind of a deranged serial kidnapper.