Win the Entire Quinn & Costa Thriller Series by Allison Brennan

A notorious serial killer is back

An edgy female police detective. An ambitious FBI special agent. Together they are at the heart of the ticking-clock investigation into a psychopathic murderer. The bond they forge in this crucible sets the stage for high-stakes suspense.

Detective Kara Quinn is on an early morning jog in Liberty Lake when she discovers the body of a young nurse. The manner of death reveals a highly controlled rage.

Word quickly reaches FBI special agent Matt Costa that this murder fits the profile of the elusive Triple Killer, who compulsively strikes every three years, targeting three victims, each three days apart. This time they have a chance to stop him. But only if they can decipher the meaning of his pattern to figure out who he is and where he is hiding before he strikes again.

The stakes have never been higher, because if they fail, one of their own team may be next…

The unsolved murder of a young activist leads to the discovery of much darker crimes in New York Times bestselling author Allison Brennan’s latest compelling thriller to feaure 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.

A lethal attack with no clear motive…and a killer dead-set on keeping the truth buried.

A bomb explodes on a sunset charter cruise out of Friday Harbor at the height of tourist season and kills everyone on board. Now this fishing and boating community is in shock and asking who would commit such a heinous crime—the largest act of mass murder in the history of the San Juan Islands.

Was the explosion an act of domestic terrorism, or was one of the dead the primary target? That is the first question Special Agent Matt Costa, Detective Kara Quinn and the rest of the FBI team need to answer, but they have few clues and no witnesses.

Accused of putting profits before people after leaking fuel endangered an environmentally sensitive preserve, the West End Charter company may itself have been the target. As Matt and his team get closer to answers, they find one of their own caught in the crosshairs of a determined killer.

“Set among Louisiana’s swamps and brooding atmosphere, 'Seven Girls Gone' is a complex mystery whose characters are as intriguing as the storyline.” —The Denver Post

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.

"This latest installment will likely satisfy Quinn and Costa’s loyal followers and attract those curious about the interplay between public policy, law enforcement, and politics." —Booklist

When a key witness goes missing, Quinn & 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 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 another person close to the case is killed, it’s clear that anyone who knows too much is in danger, and tracking down the witness becomes a matter of life-and-death. But as explosive secrets 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 with FBI special agent Matt Costa’s help, she 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.