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The Final Chapter

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Join Quint as he embarks on a dangerous quest to uncover the truth behind a murder in the thrilling conclusion of the QUINT series.


After the sudden and tragic death of her husband, a widower turns to Quint for help. She believes that the final chapter of her late husband's unfinished autobiography holds the key to solving his murder.


"If you locate that final chapter," she tells Quint, "you'll find out who killed him."

326 pages, Kindle Edition

Published December 7, 2024

37 people are currently reading
231 people want to read

About the author

Brian O'Sullivan

18 books942 followers
Librarian Note: There is more than one author in the GoodReads database with this name. See this thread for more information.

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5 stars
191 (65%)
4 stars
81 (27%)
3 stars
18 (6%)
2 stars
0 (0%)
1 star
1 (<1%)
Displaying 1 - 27 of 27 reviews
Profile Image for Donna Mallery.
958 reviews92 followers
December 29, 2024
All of the Quint series are good! I was sad to learn that this is the last book. However, I’m sure the author will release more food books!
Profile Image for Jenn.reads.books.
135 reviews2 followers
December 17, 2024
the end of an era

This was a great finish to the quint Adler series. I thoroughly enjoyed all of these stories. If you vent check this out you should!
3 reviews3 followers
January 18, 2025
Brian O'Sullivan NEVER disappoints!

I have read every book by Brian O'Sullivan. Believe it or not they are all 5 star reads! He comes through every time, with great, fast paced storylines! Bravo Brian!!
56 reviews
December 26, 2024
What a journey! I was torn between wanting to finish the last of the Quint series and never wanting it to end. All 8 books have been full of unexpected twists, humor and paced in a way that keeps you turning pages and thinking about it when you have to put the book down. Quint Adler is easily one of the most lovable characters I've discovered in a while. The Final Chapter has its share of surprises and if you've read other Brian O'Sullivan books - you know that anxiety you get when you're not sure what to expect because he doesn't shy away from giving us those "throw the book across the room" moments! Well done!
8 reviews
December 20, 2024
What a final chapter for Quint!

Excellent engaging story with plenty of humor and intrigue! Now I need to re-read the series again!! I’m thankful for the way Quint’s story was wrapped up. We need him as a PI for a long time.
Profile Image for Dana Groulx.
59 reviews1 follower
December 16, 2024
Another twisty plot from Brian O’Sullivan. Other authors give you your standard police procedural hunting a killer, but not Mr O’Sullivan. This is a woman who is sure her husband was murdered, but he was dying of cancer and had weeks to live? Why would it matter? So, it wasn’t really looked into. A great story with unique characters, unexpected plot twists, thinking people are crazy but they’re not. Did the person die because of a book that he didn’t finish, or did he really finish the book? Who knows? This is why I love this author’s books. Weird characters and off the wall plots, but so satisfying to read.
6 reviews
December 31, 2024
Wow! I am never disappointed by the Author! Reading this was bitter-sweet. As much as I have loved this book, I am just a little disappointed….only because I read it “too fast” and it is the last of the Quint Series! Very well written as always, great surprises and humor! I have now read all of Brian O’Sullivan’s books except the Evie and Frankie series which I cannot wait to get my hands on! If you have not given this Author a try, I highly recommend that you do!
119 reviews
March 14, 2025
Last book of the Quint Adler series, bummer. All 8 books in this series is well written and they will keep you guessing until the end. Each story is unique and intriguing and has that sudden shock effect. I sometimes get bored with a series and the repetativeness of them but I did not experience that with this series. This is an author that I will be following and reading more of his books.
4 reviews
March 16, 2025
Sad to see it end...

...but you never know with Quint. The Final Chapter is an excellent intermission to Quit Ad let's PI career. Brian Sullivan is talented and looking forward to his continued writing. I have read everything he has written and he has chosen a great career himself. 😊
188 reviews3 followers
June 22, 2025
The Final Chapter is the 8th and final book of Quint Adler's adventures. I love Quint. But I am glad to have finished this series. This one took a long time to get into, but a brilliant ending saved the day for my review!
I must say though...there were heaps of typos and missing words in this book. Very distracting!
7 reviews
Read
December 16, 2024
Once again Brian this book was Unputdownable and had me sitting on the edge of my chair right until the end. I thoroughly enjoyed this book, Sad to see that this is the end for Quint Adler. Looking forward to your next book.
2 reviews
December 20, 2024
Another great novel!

As usual, the author doesn’t disappoint. The Quint Thrillers are edge of your seat, always captivating books whether you read them order or not. I highly recommend them all.
81 reviews1 follower
February 17, 2025
OMG!!! 5 stars isn't enough. What a great, perfect final book for Quint.
I thoroughly enjoyed his adventures and watching his personal growth
throughout this series. So glad for the happy ending for him.
71 reviews1 follower
October 19, 2025
Gave this last book of the series 3 stars, only because I compared it to the others and it just didn't pack as much of a punch. However, this series overall was one of my absolute favorites I've read, so sad it's finished!!
105 reviews4 followers
December 15, 2024
Great book as usual.

Hated to see the Quint series to end but what an ending. Would expect nothing less from the author though.
303 reviews4 followers
December 27, 2024
Love the way Quint uses his keen observations to solve the murders. I never expected the twists and turns in this book! 🤯🤯 What am I going to do now that this series is finished??!!
90 reviews1 follower
January 18, 2025
Wow never seen the twist coming, but what will come next in Quints life
I guess just wait and see
34 reviews2 followers
January 31, 2025
Excellent final chapter for this series.

As expected, Quint PI goes out with a bang.
Excellent story, well paced to the last page. Could not put it down.
29 reviews
April 21, 2025
Captivating

I find.that each book I read in the Quint Adler series Is my favorite. So it stands to reason this is the best one yet. Enjoyed every page!
24 reviews
June 15, 2025
the final chapter

Great read! The Quint series was exciting, and I didn't want to put it down. I hope there are more
68 reviews1 follower
December 10, 2024
Heart stopping

Heart stopping suspense. One twist after another to keep the reader guessing to the last page. Please dont retire Suing just yet.
Profile Image for Patti.
321 reviews17 followers
December 9, 2024
Great "end" to a great series!

"THE FINAL CHAPTER" is everything you want in the last book of a thrilling, well written series. I hope this isn't the last we'll see of Quint Adler, but if it sadly is, then the talented Brian O'Sullivan sent him out with a bang.
Profile Image for Kim McFall.
176 reviews2 followers
September 3, 2025
One of my absolute favorite series has come to an end! I’ve put off reading this for the longest time because I didn’t want it to end.

As usual, Brian O’Sullivan did not disappoint. I loved this Quint book just as much as the others!
Displaying 1 - 27 of 27 reviews

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