Quinn & Costa Thriller

An edgy female police detective... An ambitious FBI special agent... Together they are at the heart of the ticking-clock investigation for a psychopathic serial killer. The bond they forge in this crucible sets the stage for high-stakes suspense. Detective Kara Quinn, on leave from the LAPD, is on an early morning jog in her hometown of Liberty Lake when she comes upon the body of a young nurse. The manner of death shows a pattern of highly controlled rage. Meanwhile in DC, FBI special agent Mathias Costa is staffing his newly minted Mobile Response Team. Word reaches Matt that the Liberty Lake murder fits the profile of the compulsive Triple Killer. It will be the first case for the MRT. This time they have a chance to stop this zealous if elusive killer before he strikes again. But only if they can figure out who he is and where he is hiding before he disappears for another three years. The stakes are higher than ever before, because if they fail, one of their own will be next...

The unsolved murder of a young activist leads to the discovery of much darker crimes in New York Times best-selling author Allison Brennan’s latest compelling thriller to feature the young, edgy detective Kara Quinn and the loner FBI agent Matt Costa. This time they work to uncover possible ties to a high-stakes cartel in the Southwest desert. Something mysterious is killing the wildlife in the mountains just south of Tucson. When a college intern turned activist sets out to collect her own evidence, she, too, ends up dead. Local law enforcement is slow to get involved. That’s when the mobile FBI unit goes undercover to infiltrate the town and its copper refinery in search of possible leads. Quinn and Costa find themselves scouring the desolate landscape, which keeps revealing clues to something much darker — greed, child trafficking, and more death. As the body count adds up, it’s clear they have stumbled onto much more than they bargained for. Now they must figure out who is at the heart of this mayhem and stop them before more innocent lives are lost.

When nobody will talk and corruption runs deep, turning to outsiders is the only way to make sure women stop disappearing... For three years, women have been going missing, and eventually turning up dead in the small bayou town of St. Augustine, Louisiana. Police detective Beau Hebert is the only one who seems to care, but with every witness quickly silenced and a corrupt police department set on keeping the cases unsolved, Beau's investigation stalls at every turn. With nobody else to trust, Beau calls in a favor from his friend on the FBI's Mobile Response Team. While LAPD detective Kara Quinn works undercover to dig into the women's murders and team leader Matt Costa officially investigates the in-custody death of a witness, Beau might finally have a chance at solving the case. But in a town where everyone knows everyone, talking gets you killed and secrets stay buried, it's going to take the entire team working around the clock to unravel the truth. Especially when they discover that the deep-seated corruption and the deadly drug-trafficking ring at the center of it all extends far beyond the small-town borders.

When a key witness goes missing, Quinn and Costa must find her before a killer silences her for good... Detective Kara Quinn is back in Los Angeles to testify against a notorious human trafficker, finally moving past the case that upended her life. But when the accused is shot by a masked man in broad daylight, the chaotic scene of the crime turns up few reliable bystanders. And one witness-a whistleblower who might be the key to everything-has disappeared. After the prosecuting DDA is stabbed to death, it's clear that anyone who knows too much about the investigation is in danger, and tracking down the witness becomes a matter of life or death. With government corruption running rampant and someone on the inside trying to pin anything they can on Kara, she trusts nobody except FBI special agent Matt Costa and a handful of allies. But when explosive secrets begin to surface within the LAPD and FBI, Kara questions everything she thought she knew about the case, her colleagues and the life she left behind months ago. Now Quinn and Costa must race to find the missing witness and get to the bottom of the avalanche of conspiracies that has rocked LA to its core...before it's too late.

No matter how far you run, some pasts never let you go... Two people were murdered, at the exact same time, in the same gruesome manner, bodies covered in the same red poppies...but on opposite sides of the country. With Detective Kara Quinn investigating in Oregon and Special Agent Matt Costa in Virginia, the Mobile Response Team digs deep to uncover more about each victim. What is the link between the two, and why were they targeted? Yet their search unearths more questions than answers, until they meet Riley Pierce, the only person still alive who might be able to help them find the killers. Soon, it becomes clear this case is nothing like they've seen before as their investigation leads them to the hallowed grounds of Havenwood, an eerily beautiful place rooted in a terrifying past. As more bodies turn up, all tied to the same community, Kara and Matt are desperate to piece the puzzle together before Havenwood's leader sacrifices everything to keep her secrets buried.

Allison Brennan returns to her bestselling series with an edge-of-your-seat thriller that thrusts Quinn and Costa into the crosshairs of a sadistic serial killer. Three newlywed couples have disappeared from an exclusive resort in Florida, only to turn up dead soon after. With the location and the similarities between the female victims as their only leads, it's up to the FBI Mobile Response Team to catch a serial killer before anyone else ends up dead. And they have the perfect bait-Detective Kara Quinn, who bears an uncanny resemblance to the targeted women. Undercover as newlyweds pretending to enjoy their honeymoon, Kara and FBI Agent Matt Costa set a flawless trap. When their plan works and they arrest the predator, Matt sends the rest of the team home so he and Kara can have the weekend for some much-needed R&R. But on Monday morning, the couple doesn't show up to work, and the MRT learns they never checked out of their hotel. As their team tries to find them, Matt and Kara learn the truth-the killer wasn't acting alone. He had a partner who succeeded where he failed. Kidnapped and forced into a twisted escape room, they need to find a way out, because if they don't escape, they'll die.