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K-9 Search & Rescue Mysteries #10
The Longest Day: K-9 Search & Rescue Mysteries, Book 10
Stella Briggs is six years old. She's been missing from her family's campsite since nine-thirty last night.
And she is not alone in those mountains.
Gemma Hartley-Reyes takes the call before dawn. Eight and a half months pregnant, she can't run into the trees and find this child herself, not this time, not with a baby three weeks away.
A missing child. An abandoned campsite. Boot prints in the dirt that don't belong to any six-year-old.
As Kate and Scout work the field, Tyler leads ground teams up the drainages, and Marco coordinates law enforcement, Gemma takes command from staging and fights every instinct she has.
Stella is alive. Scout confirms it.
She is moving through the backcountry with the terrified logic of a small child who has seen something she was never supposed to see, something that sent her running into the dark before anyone knew she was gone. And the man whose boot prints follow hers does not want her found.
Meanwhile, under Gemma's map table, an old gray-muzzled dog lies with her chin on her paws, reading the air the way she has for a decade. In her entire career, Kira has whined to alert her handler exactly four times. Today she whines again, and Gemma understands, the way she has understood this dog for ten years, that something on the mountain has just changed.
The Longest Day is the emotional heart of the Search and Rescue Mysteries, the search that tests every handler, breaks every heart, and lets an old working dog give her team one last gift before she lays down her vest.
Perfect for fans of Nevada Barr, Margaret Mizushima, and Robert Crais. Have tissues ready.
Book 10 of 14. Start with Book 1: Trail Gone Dark.
And she is not alone in those mountains.
Gemma Hartley-Reyes takes the call before dawn. Eight and a half months pregnant, she can't run into the trees and find this child herself, not this time, not with a baby three weeks away.
A missing child. An abandoned campsite. Boot prints in the dirt that don't belong to any six-year-old.
As Kate and Scout work the field, Tyler leads ground teams up the drainages, and Marco coordinates law enforcement, Gemma takes command from staging and fights every instinct she has.
Stella is alive. Scout confirms it.
She is moving through the backcountry with the terrified logic of a small child who has seen something she was never supposed to see, something that sent her running into the dark before anyone knew she was gone. And the man whose boot prints follow hers does not want her found.
Meanwhile, under Gemma's map table, an old gray-muzzled dog lies with her chin on her paws, reading the air the way she has for a decade. In her entire career, Kira has whined to alert her handler exactly four times. Today she whines again, and Gemma understands, the way she has understood this dog for ten years, that something on the mountain has just changed.
The Longest Day is the emotional heart of the Search and Rescue Mysteries, the search that tests every handler, breaks every heart, and lets an old working dog give her team one last gift before she lays down her vest.
Perfect for fans of Nevada Barr, Margaret Mizushima, and Robert Crais. Have tissues ready.
Book 10 of 14. Start with Book 1: Trail Gone Dark.
- GenresMystery
260 pages, Kindle Edition
Published May 29, 2026
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Displaying 1 - 19 of 19 reviews
July 15, 2026
So true
This brought good memories of a distant past with me and my search. Dog Nikki. One thing I have never forgotten about her. I was talking on the phone one evening and I didn't realize it but Nikki was listening to me. We were. Talking about books we were reading. I noticed she left the room. No big deal I thought. The thing I see is Nikki bring a book to me. It was the book I was reading at the time., it was a giant paper back but she was able to get into her mouth. She brought it right to my hands. I guess she understood. I was talking about the one I was reading now?.she could barely get it in Her mouth. She had never brought things to me like that before. We had only been training for about 3 weeks. Bluw my miNd. That was the beginning of a long enjoyable working years.
Barb & Nikki
This brought good memories of a distant past with me and my search. Dog Nikki. One thing I have never forgotten about her. I was talking on the phone one evening and I didn't realize it but Nikki was listening to me. We were. Talking about books we were reading. I noticed she left the room. No big deal I thought. The thing I see is Nikki bring a book to me. It was the book I was reading at the time., it was a giant paper back but she was able to get into her mouth. She brought it right to my hands. I guess she understood. I was talking about the one I was reading now?.she could barely get it in Her mouth. She had never brought things to me like that before. We had only been training for about 3 weeks. Bluw my miNd. That was the beginning of a long enjoyable working years.
Barb & Nikki
June 16, 2026
I’ve always been a crybaby!
I stayed up too late last night because I had to know what happened next, but I just couldn’t keep reading to the end of the search. I was very impressed with how Stella kept herself safe. Loved how she remembered what her Daddy had taught her.
I was my mom’s eighth child after a ten year break she had thought she was finished but then the “opps” was on the way, she cried the entire time she was pregnant with me thus I was a crybaby. But I had reason to cry over Kira getting older and retiring! And it’s not over yet! Just waiting on the next release. I tried very hard not to read the last two books yet, but I couldn’t hold off, I couldn’t wait! Now I have to… wait!!! Life is not! Thank you for the excellent reads!
I stayed up too late last night because I had to know what happened next, but I just couldn’t keep reading to the end of the search. I was very impressed with how Stella kept herself safe. Loved how she remembered what her Daddy had taught her.
I was my mom’s eighth child after a ten year break she had thought she was finished but then the “opps” was on the way, she cried the entire time she was pregnant with me thus I was a crybaby. But I had reason to cry over Kira getting older and retiring! And it’s not over yet! Just waiting on the next release. I tried very hard not to read the last two books yet, but I couldn’t hold off, I couldn’t wait! Now I have to… wait!!! Life is not! Thank you for the excellent reads!
June 1, 2026
I have read the whole series by Sophie, I trained dogs and this fits right in my love interest. The last book I think it was my favorite, even though it made me cry and laugh, the fact that Gemma found her home and a new life in the little town was wonderful. I cannot speak enough, about Kira and Gemma’s relationship. When you work with dogs as closely she does through the books, you understand her love for them and the pain of seeing your dog grow old, but I will read more of her books as she gets them out and I hope they all include dogs laugh out loud. Thank you, Sophie for your talent and your love of these beautiful creatures.
This entire review has been hidden because of spoilers.
June 12, 2026
She's not in her sleeping bag!! Gripping!!
The cry goes out! Everyone in the campground is looking for a 7 yo little girl. SAR is called out. Gemma, 8 1\2 months pregnant, is in the command tent with Kira. Kate and Scout are lead search and rescue team. The lost 7 years happens to pass a murder and starts running with the murderer right behind her. After 15 hours SAR and Scout found the frightened child. After waiting for the child Scout was able to get her to come out of hiding. Great job. Thank you.
The cry goes out! Everyone in the campground is looking for a 7 yo little girl. SAR is called out. Gemma, 8 1\2 months pregnant, is in the command tent with Kira. Kate and Scout are lead search and rescue team. The lost 7 years happens to pass a murder and starts running with the murderer right behind her. After 15 hours SAR and Scout found the frightened child. After waiting for the child Scout was able to get her to come out of hiding. Great job. Thank you.
August 5, 2026
Gemma and Kira...new season
Fabulously written to wrench emotions to the surface. Gemma and Kira settling into new roles. Other characters keep the town feeling like home, real and vibrant. Murder, a child, fear, real scenes and real team work, proving that groups can work together for the greater good. Many tears because of all the emotional responses to a well told story that right gs true... it hurts to know Kira is at the end of her life, as Gemma's baby begins his. The story deepens and is satisfying...
Fabulously written to wrench emotions to the surface. Gemma and Kira settling into new roles. Other characters keep the town feeling like home, real and vibrant. Murder, a child, fear, real scenes and real team work, proving that groups can work together for the greater good. Many tears because of all the emotional responses to a well told story that right gs true... it hurts to know Kira is at the end of her life, as Gemma's baby begins his. The story deepens and is satisfying...
July 6, 2026
K-9 Search and Rescue #10
The stories of Kira and Gemma rescuing are coming to an end with this novel. Lyon does continue with the development of the characters so readers know family and friend and what changes have occurred. It's a wonderful series . I plan to read it until the final book #14. Excellent stories that are well written.
The stories of Kira and Gemma rescuing are coming to an end with this novel. Lyon does continue with the development of the characters so readers know family and friend and what changes have occurred. It's a wonderful series . I plan to read it until the final book #14. Excellent stories that are well written.
August 19, 2026
next steps
I generally like the books and their story, but after 10 books some the repetition is getting old, like word count, but if you just read one or two books you may not notice it. I am reading them back to back to back, newly retired and reading-a lot
I will continue as the story does pull at me.. will Marco ever hold the baby?
I generally like the books and their story, but after 10 books some the repetition is getting old, like word count, but if you just read one or two books you may not notice it. I am reading them back to back to back, newly retired and reading-a lot
I will continue as the story does pull at me.. will Marco ever hold the baby?
September 12, 2026
2 great thing's happened
This was another amazing experience in SAR with a great outcome. The young child was found, alive. And the man chasing her is also found. But this was still an interesting experience to follow. But more importantly the baby is born!!! And the fully retired Kira can help baby sit.
This was another amazing experience in SAR with a great outcome. The young child was found, alive. And the man chasing her is also found. But this was still an interesting experience to follow. But more importantly the baby is born!!! And the fully retired Kira can help baby sit.
May 30, 2026
I am going blind.
A prolific reader for 74 years, I did. Not have to be as selective. I had plenty of time, i believed
this was one of my first of the last day series. I'm so glad I did!
There be people here!
Beauty, fear, risk, agony & joy.
Read
This series
&
Live deeply.
A prolific reader for 74 years, I did. Not have to be as selective. I had plenty of time, i believed
this was one of my first of the last day series. I'm so glad I did!
There be people here!
Beauty, fear, risk, agony & joy.
Read
This series
&
Live deeply.
June 21, 2026
Happy Moments
Kate and Scout take over on a search for a small child. Gemma and Kira have their own things to do. If you can read this story without tears in your eyes, you are a Moe callous person than I.
Kate and Scout take over on a search for a small child. Gemma and Kira have their own things to do. If you can read this story without tears in your eyes, you are a Moe callous person than I.
August 4, 2026
The longest day .
Great books but along with that is whoever is doing the proof reading needs to try harder .To many thing are one way in One chapter but change in the next ,date, ages what people are doing.
Great books but along with that is whoever is doing the proof reading needs to try harder .To many thing are one way in One chapter but change in the next ,date, ages what people are doing.
September 28, 2026
growth for all
This one made me cry during parts of it dealing with Kira. The search & rescue were incredible. It’s hard to believe a 6-year old could dupe an adult, but the outcome was so much better because of her ingenuity. Terrific read.
This one made me cry during parts of it dealing with Kira. The search & rescue were incredible. It’s hard to believe a 6-year old could dupe an adult, but the outcome was so much better because of her ingenuity. Terrific read.
May 29, 2026
surprisingly good
I love the dogs and the handlers in these books. This one made me cry as the torch was passed.
I love the dogs and the handlers in these books. This one made me cry as the torch was passed.
May 31, 2026
Sophie Lyon writes awesome books
I had been waiting for this book. It was good but I hate Kira retired I cried Can't wait for the next book
I had been waiting for this book. It was good but I hate Kira retired I cried Can't wait for the next book
June 21, 2026
Heartwarming series
Well written and very informative series about SAR (search and rescue) and the impact dedicated people have on the lives of others plus the really great dogs !
Well written and very informative series about SAR (search and rescue) and the impact dedicated people have on the lives of others plus the really great dogs !
July 4, 2026
Longest day
This is the book I couldn't put down. I felt the suspense of what the parents were going through having their six-year-old missing on their first camping trip.
This is the book I couldn't put down. I felt the suspense of what the parents were going through having their six-year-old missing on their first camping trip.
August 10, 2026
welcome Atticus
Gemma had her baby. Marco was with her and so was Rosa. Ben and Kate have something developing between them. Kira is retired. The world is moving forward
Gemma had her baby. Marco was with her and so was Rosa. Ben and Kate have something developing between them. Kira is retired. The world is moving forward
September 5, 2026
I just love this series! Gemma, Marco, Rosa and especially Kira!!!!
October 29, 2026
Kia's second retirement ceremony had me in tears again
I want to see Kira being Atticus's shadow. Protecting and teaching, who better?
Who's coming up behind Kate to take over?
I want to see Kira being Atticus's shadow. Protecting and teaching, who better?
Who's coming up behind Kate to take over?
Displaying 1 - 19 of 19 reviews