Kate O'Brien's quiet life in small-town Shelter Cove, Arkansas is shaken when her past suddenly comes roaring back to life. Four years ago, she and her twin sister were attacked by an elusive serial killer. Only Kate survived, and she's been in witness protection ever since. When new evidence arises to suggest the convicted man wasn't the murderer, she's subpoenaed to testify in the new trial. Afraid to go back into that world, Kate only agrees if Tony DeLuca, the deputy Marshal who protected her during the original trial, escorts her to St. Louis. Tony readily takes on the assignment; Kate's beauty and inner strength made more of an impression on him than he expected. But when Kate's safety is threatened, Tony must race against the clock to keep her alive and put this ugly case to rest before anyone else gets killed.

Deputy U.S. Marshal Casey Sloane has worked at the St. Louis Marshals office for two years and is given a routine assignment to help transport a reporter to D.C. to testify before a grand jury. Valerie, the reporter, was writing a story about an up-and-coming environmentalist who suddenly disappeared and, she later discovered, whose backers purportedly have ties to a terrorist. When the seemingly ordinary assignment suddenly takes a shocking turn, Casey is forced to put aside her own feelings about the unexpected reappearance of a man from her past as she and two other Marshals take Valerie on the run. And as it becomes dangerously clear Valerie's testimony has even bigger implications than they knew, they'll do whatever it takes to make it out alive.

Kate O'Brien's quiet life in small-town Shelter Cove, Arkansas is shaken when her past suddenly comes roaring back to life. Four years ago, she and her twin sister were attacked by an elusive serial killer. Only Kate survived, and she's been in witness protection ever since. When new evidence arises to suggest the convicted man wasn't the murderer, she's subpoenaed to testify in the new trial. Afraid to go back into that world, Kate only agrees if Tony DeLuca, the deputy Marshal who protected her during the original trial, escorts her to St. Louis. Tony readily takes on the assignment; Kate's beauty and inner strength made more of an impression on him than he expected. But when Kate's safety is threatened, Tony must race against the clock to keep her alive and put this ugly case to rest before anyone else gets killed.

When FBI profiler Kaely Quinn's mother is diagnosed with cancer, Kaely takes time off work to go to Dark Water, Nebraska, to help her brother care for their mother. Upon her arrival, she learns of a series of fires in the small town, attributed by the fire chief to misuse of space heaters in the frigid winter. But Kaely is skeptical, and a search for a pattern in the locations of the fires bolsters her suspicions. After yet another blaze devastates a local family, Kaely is certain a serial arsonist is on the loose. Calling upon her partner from St. Louis, Noah Hunter, and her brother's firefighter neighbor who backs Kaely's suspicions, Kaely and her team begin an investigation that swiftly leads them down a twisted path. When the truth is finally revealed, Kaely finds herself confronting a madman who is determined his last heinous act will be her death.

He has a deadly endgame in mind--and he's already chosen each victim . . . including her. After putting to rest the most personal case of her career, Alex Donovan is ready to move on and focus on her future at the FBI's elite Behavioral Analysis Unit. When the BAU cofounder is discovered dead in his hotel room, the FBI is called in to work on the strangest case they've ever faced. How do you find a killer who murders his victims from a distance? When it becomes clear that the killer is targeting agents in Alex's unit, they are ordered into lockdown, sheltered in the dorms at Quantico. Alex bunks with controversial agent Kaely Quinn, and as they work together, Alex discovers in Kaely the role model she's never had--despite being warned away. As Alex questions the type of agent she wants to become, things get personal when the brilliant killer strikes close to home. Now Alex will do anything to find the killer--even at the risk of her own life.

Twenty years ago, several people were murdered in Des Moines, and the only evidence left behind was a snowman ornament hanging ominously on a tree in the victims' front lawns. With a suspect behind bars, the killings have come to an end--or so everyone thought. But now crimes with a similar MO are happening in a small Iowa town, and a local detective believes the killer is back and ready to strike again. With little time left on the clock before they have another murder on their hands, private investigators River Ryland and Tony St. Clair must work alongside Tony's detective father to find evidence that will uncover an evil that has survived far too long. As the danger mounts and the suspect closes in, it will take all they have to catch a killer--before he catches one of them. Nancy Mehl delivers nail-biting suspense with . . . "Plot twists you won't see coming."--Tosca Lee, New York Times bestselling author on Cold Pursuit "A relentless pace that will keep readers glued to their seats."--Publishers Weekly on Free Fall

Kaely Quinn's talents as an FBI behavior analyst are impossible to ignore, no matter how unorthodox her methods. But when a reporter outs her as the daughter of an infamous serial killer, she's demoted to field agent and transferred to St. Louis. When the same reporter who ruined her career claims to have received an anonymous poem predicting a string of murders, ending with Kaely's, the reporter's ulterior motives bring his claim into question. But when a body is found that fits the poem's predictions, the threat is undeniable, and the FBI sends Special Agent Noah Hunter to St. Louis. Initially resentful of the assignment, Noah is surprised at how quickly his respect for Kaely grows, despite her oddities. But with a brazen serial killer who breaks all the normal patterns on the loose, Noah and Kaely are tested to their limits to catch the murderer before anyone else--including Kaely herself--is killed.