Quinn and Costa are back together in this latest installment in the series. They return to LA so Kara Quinn can testify at a hearing for David Chen, the human trafficker who put a bounty on her head when she busted his operation. Violet is a city IT employee and a dedicated volunteer for the homeless community when she discovers a financial fraud that puts her in terrible danger. Fast paced and filled with action (and murder!). My only compliant is that I wish the crime was a little more straight forward. I understand in the real world this type of activity is muddled and complicated, but it'd be nice if it had been tightened up a bit for the sake of streamlining the story. It is eye opening that grants for non-profits serving the homeless are so wildly unregulated, I assume this is based in fact after reading the author's note.

I love, love, love the Kara Quinn series, and this just continues to add to it. Such a fierce character, you can't help but always cheer for her. And, a badass female lead to boot. Highly recommend this series!

Thank you to NetGalley and Harlequin Trade Publishing for this ebook. The Missing Witness is the fifth book in the Quinn & Costa Series. A great addition to the series, but a great standalone as well. A new killer to track down. A witness to find. Government and police corruption. Non-stop action, family drama and relationship issues. It’s got it all. Enjoy!

Another fantastic read by this author. The case is complex and kept me gripped from the beginning. I loved getting so much of Kara's past. The relationship between her and Matt, both personally and professionally, shows a lot of growth. The procedural aspects were page turning. I read this one in one sitting. I am so glad this series is continuing. There were plenty of jaw dropping moments and I can't wait to see what happens next!

I do not repeat the synopsis. I love this series. Actually, I love everything written by this Author. Kara and Matt are fabulous characters and I can’t get enough of them. I do wish this Author would write just a bit faster. LOL. Many thanks to NetGalley, Harlequin Trade Publishing and the Author for allowing me to read and review this book.

I am reading this series all out of order (this is book 5 and I've only read book 5). but I'm not having trouble following the and it could easily be read as a stand a lone. This is a police procedural, set in Los Angeles, with both the LAPD and FBI playing key roles in investigating corruption. I love the characters, the plot is well paced, and I'm definitely going to read the first three. Highly recommended

Thanks to NetGalley and MIRA publishing for an advanced reader copy.

Homeless camps, LA, drugs, city officials and dirty officials, this novel has them all. An edge of your seat thriller that takes the reader on a roller coaster of emotions. Not to he missed.

I like Quinn and Costa's chemistry! This thriller is involved and intense, and I loved it! Now, I have to go back and read the ones I missed in this series.

I have to say I think this has been my favorite installment of the Quinn and Costa series. The plot is super intense and complex but SO...FREAKING...WORTH IT!!
You will NOT want to miss this!!

Quinn and Costa are back in a political thriller highlighting the unhoused crisis in Los Angeles. Violet Halliday is a volunteer with a local group that supports the homeless population; Violet is also looking for her mother who has been living on the streets. Then Violet witnesses a shooting that has her scared and in hiding. Kara Quinn is back in LA to testify on the case that had her sent away and assigned to the MRT, but several deaths occur in the first quarter of the book that have Kara and the team swept up in politics and backdoor deals. This latest installment in the series is just as good as the rest. It has Costa and Quinn still exploring their relationship, but romance is definitely not the focus of this book. Without giving spoilers, there was also a storyline in this book very reminiscent of a soap opera, but it was handled well by the author. While this is part of a series, this book can be read as a standalone, but this particular installment does have lots of callbacks to others.

Started just a tad slow but then the story grabbed me. Knowing this is fiction, it was still informative to learn about the grant process and how it s often abused by people who only want money and power. The homeless are not part of their concern. I’ve read all the Costa and Quinn books and will look forward to the next one.

This was the fifth book in the Quinn and Costa series. I realized this AFTER requesting this book on Netgalley, but was easily able to read as a stand-alone. I have read some other reviews that it might be a spoiler if you plan to go back and read the first books in the series, so keep that in mind if you decide to pick this book up.

This book was twisty and had me on the edge of my seat. It touched on difficult topics such as addiction, human trafficking, and more. I highly recommend this book if you are into procedural books and want something a little bit different than your usual thriller!

Thank you Netgalley, Harlequin Trade Publishing, and Allison Brennan for the opportunity to review an advanced readers copy of this gripping read!

This is the one I’ve been waiting for for a long time. We finally get the story that brought Kara to the FBI and let me tell you this was a complicated puzzle that kept me guessing and on edge. This almost feels like the last book in this series and if it is that makes me sad.

She had never needed anyone, until Matt.

With Matt, she felt like she had someone standing for her: standing behind her in support, standing in front of her to protect, standing at her side to join her in the fight.

I love Matt and Kara and there story has progressed every new edition. This is definitely not to be missed.

“The Missing Witness” was entertaining and fast paced. I enjoyed the multi-narrative views along with the complexity of the plot. I had not realized this was part of a series, as it read to me as a stand alone. If I had not researched the author, I would not have realized otherwise. :)

Thank you for providing me the opportunity to review "The Missing Witness” prior to publication. I am appreciative and leave my sincerity review voluntarily.

An Interesting mystery. It was very woven and intricate, lots of characters and a few similar names I struggled to keep straight at first! But a good story with characters that grew on me.

In the fifth book of the Quinn and Costa series by Allison Brennan, Detective Kara Quinn is due to testify in a human trafficking case, but when the accused is murdered, the case is in chaos and Detective Quinn, along with FBI Agent Matt Costa, must find a witness to the crime, who appears to be missing.

This is a fast-paced thriller laced with conspiracies and corruption. It gets so intense at times that you really have to pay attention so as not to get lost in the convoluted plot.

I adore Detective Quinn and could read about her all day long. I highly recommend this book, especially if you love a great police procedural. Thank you, NetGalley and Harlequin Trade Publishing for the eARC. The Missing Witness is due to be published on January 23, 2024.

When key witness disappears after seeing a notorious human trafficker killed in broad daylight, Detective Kara Quinn and her team must race to find her before she’s silenced for good.

The Missing Witness was book six in the Quinn and Costa series. As someone who hadn’t read any of the previous books in the series, I found the first third of the book to be super confusing. The author didn’t really introduce any of the characters and glazed over things that happened in previous books that were pertinent to the plot in this one. Additionally, the book centered on a complex white-collar crime that took me awhile to get a grasp on, which detracted from my enjoyment of the novel. However, the main characters, specifically Kate Quinn and Matt Costa, were perfection. They were layered, interesting and passionate about their work. While the twists weren’t plentiful, the ones that were included were superb and kept me guessing. Lastly, the ending was incredibly satisfying and left me wanting more. Overall, this was a good police procedural thriller but, I recommend reading the first five books in the series before diving into this one!

Thank you to NetGalley and Harlequin Trade Publishing for the opportunity to read this ARC!

A copy of this review will be posted to my Instagram page (whats.amy.reading) during the week of November 6.

I reently finished this book after struggling a bit at the beginning and through to the middle of the book. I couldn't put my finger on what was causing the struggle but then I realized, there were too many characters and I was having a lot of trouble keeping them all straight. I find this happens sometimes with books with Police and other law enforcement agencies in books. I loved the relationship between the main character and the officers she worked with. I did end up enjoying the end of the book and think it finished strong.

I have been provided with a review copy of The Missing Witness from NetGalley for an impartial review. I was just drawn into this wonderful story and I just couldn’t get enough of it. It was just so easy to get lost in this great story. I just didn’t want it to end. I just lost myself in and I just couldn’t get enough of these interesting characters. I can’t wait to see what’s next from this author.

I thoroughly enjoyed the book "The Missing Witness". This is the 5th book in the LAPD Detective Kara Quinn and FBI agent Matt Costa series. This book goes back to LA where it all started for Kara. She is called back to testify in the trial against the human trafficker. But nothing went according to plan and Kara and Matt are left trying to figure out what happened and who is compromised. This book has so many twists and turns but it all works out in the end. There was a great rhythm to this book and it made it hard to pick a point and stop reading. So be prepared to read until done because you will not put the book down.
I wanted to thank #NetGalley and Harlequin Trade Publishing for the digital advanced reader copy of the book in exchange for my honest review.