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If you seek a long and happy life there is one thing you must never do... Cross Doc Holliday.

Thomas Jury has been taken, and there is nothing in this world that can stop Doc from getting him back. The only problem is that doing so may incite a war, but right now Doc is too pissed to care. He's on a collision course with the most powerful witch family in the world. Unfortunately for them, Doc's wrath may be more than they can bear...

Fans of edgy characters look no further! If you're into badass, morally ambiguous, anti-heroes that don't flinch at killing bad guys (and stealing their souls) then this is the book for you! It has the perfect blend of supernatural action, humor, and mystery that you crave.

Get this fourth book in the amazing ongoing series and join the thousands of happy Doc-a-holics today!
(Do it now...I command you!)
Also Click 'Follow' Beside the Author Name So You Don't Miss Release Updates!

So what are you waiting for... Get the book already! And always remember: W.W.D.D. What-Would-Doc-Do? (Actually, scratch that; Doc is pretty angry right now and not making the best decisions. That said you should totally get this book today!) Happy Reading!

And get your FREE Doc eBook at mmcrumley dot com
THE IMMORTAL DOC HOLLIDAY On-going Series Titles
Book 1: HIDDEN
Book 2: COUP D'ÉTAT
Book 3: RUTHLESS
Book 4: INSTINCT
Book 5: ROGUES
Book 6: EMPIRE
Book 7: OMENS
Book 8: CHASM
Book 9: FERAL
Book 10: OBLIVION
Book 11: RELENTLESS
Book 12: REQUIEM
Book 13: HELLION
Book 14: SHADOWS
Book 15: INDEBTED
Book 16: FATHOM
& More Coming Soon...

Read and Listen to My THE HOUSE OF GRAVES Five Book Series
Book 1: THREE LITTLE GRAVES & THE BIG BAD WOLF
Book 2: OVER THE RIVER & THROUGH THE WOODS
Book 3: FIRE BURN & CAULDRON BUBBLE
Book 4: A HUNTING, A HUNTING WE WILL GO
Book 5: AND HE WALKED A CROOKED MILE

Also read and listen to THE LEGEND OF ANDREW RUFUS Complete Seven Book Series
Book 1: DARK AWAKENING
Book 2: BONE DEEP
Book 3: BLOOD STAINED
Book 4: BURIAL GROUND
Book 5: DEATH SONG
Book 6: FUNERAL MARCH
Book 7: WARPATH

And try my deliciously dark psychological thrillers (Writing as M.M. Boulder)
THE HOUSE THAT JACK BUILT
MY BETTER HALF
THE LAST DOOR
MY ONE AND ONLY
WE ALL FALL DOWN

lastly, for the Young Reader in Your Life—Available Now!
RUTHIE & THE TROUBLE WITH BEING TEN

Unknown Binding

First published August 30, 2021

230 people are currently reading
106 people want to read

About the author

M.M. Crumley

51 books154 followers
Click 'FOLLOW' Beside the Author Name So You Don't Miss Release Updates From This Amazon #1 Bestselling Author!
(M.M. Boulder is the penname of M.M. Crumley) https://www.goodreads.com/author/show...

Hi, I'm M.M. Crumley Your Author Extraordinaire (Also Known as M.M. Boulder)

As M.M. Crumley I write Urban Fantasy books full of supernatural action, nail-biting-mystery and; laugh-out-loud humor. Why? Because stories, myths, and legends have always been a huge part of my life... As a child, I liked nothing better than to lose myself in a world where magic and heroes were part of the fabric of existence.

As my pen name M.M. Boulder I write psychological thrillers and murder mysteries that bring the darker impulses we may not feel completely comfortable with into the light. My stories are full of lies and deaths, but there is always justice. A type of justice that's not afraid to get its hands dirty. I write morally ambiguous characters who are pushed to their limits and take matters into their own hands. In my world getting away with murder has never been so much fun!

No matter what I write every one of my characters are real to me. They exist. They are three-dimensional beings who demand that their stories be told. If I were to turn away from them, they would haunt me; and so I don't. Instead I chase after them and write down everything they say!

I have several series to help you scratch your itch for adventure:
THE HOUSE OF GRAVES Series
THE IMMORTAL DOC HOLLIDAY Series
THE LEGEND OF ANDREW RUFUS Series
JANEY FALKE: SAINT KILLER Series (Coming Soon)
Five Deliciously Dark Psychological Thriller Novels
And More...

To learn more or to just make friends come play with me at the sites below. And be sure to click 'Follow' everywhere to stay in touch! You rock!

My website: www.mmcrumley.com
Facebook: https://www.facebook.com/LoneGhostPub...

Amazon M.M. Crumley: https://www.amazon.com/stores/M.M.-Cr...
Amazon M.M. Boulder: https://www.amazon.com/stores/M.M.-Bo...

Bookbub M.M. Crumley: https://www.bookbub.com/authors/m-m-c...
Bookbub M.M. Boulder: https://www.bookbub.com/authors/m-m-b...

Goodreads M.M. Crumley: https://www.goodreads.com/author/show...
Goodreads M.M. Boulder: https://www.goodreads.com/author/show...

And get your FREE Doc eBook at mmcrumley. com

Read and Listen to THE IMMORTAL DOC HOLLIDAY On-going Series Titles
Book 1: HIDDEN
Book 2: COUP D'ÉTAT
Book 3: RUTHLESS
Book 4: INSTINCT
Book 5: ROGUES
Book 6: EMPIRE
Book 7: OMENS
Book 8: CHASM
Book 9: FERAL
Book 10: OBLIVION
Book 11: RELENTLESS
Book 12: REQUIEM
Book 13: HELLION
Book 14: SHADOWS
Book 15: INDEBTED
Book 16: FATHOM
& More Coming Soon...

Read and Listen to THE HOUSE OF GRAVES Five Book Series
Book 1: THREE LITTLE GRAVES & THE BIG BAD WOLF
Book 2: OVER THE RIVER & THROUGH THE WOODS
Book 3: FIRE BURN & CAULDRON BUBBLE
Book 4: A HUNTING, A HUNTING WE WILL GO
Book 5: AND HE WALKED A CROOKED MILE

Also read and listen to THE LEGEND OF ANDREW RUFUS Complete Seven Book Series
Book 1: DARK AWAKENING
Book 2: BONE DEEP
Book 3: BLOOD STAINED
Book 4: BURIAL GROUND
Book 5: DEATH SONG
Book 6: FUNERAL MARCH
Book 7: WARPATH

And try my deliciously dark psychological thrillers (Writing as M.M. Boulder)
THE HOUSE THAT JACK BUILT
MY BETTER HALF
THE LAST DOOR
MY ONE AND ONLY
WE ALL FALL DOWN

lastly, for the Young Reader in Your Life—Available Now!
RUTHIE & THE TROUBLE WITH BEING TEN

FREE GIFT eBook and more @ mmcrumley.com

























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5 stars
515 (66%)
4 stars
218 (28%)
3 stars
41 (5%)
2 stars
2 (<1%)
1 star
2 (<1%)
Displaying 1 - 27 of 27 reviews
Profile Image for Sydney.
1,339 reviews67 followers
September 6, 2022
5 The Element Of Surprise Stars

Instinct is the fourth book in The Immortal Doc Holliday series by M. M. Crumley.

I knew I was holding that fifth star for something special. This book was pure perfection. Boudica is an amazing addition to this story, and I can't wait to learn more about her. I hope she will eventually be able to talk, or mind speak, at least some form of communication beyond shrugs and nods.

But most importantly, all of this insight into the society of witches within this literary world has been enlightening. Specifically, diving into the Jury family and all that that entails. While Thomas Jury will always be my favorite member of this elitist family, I enjoyed discovering other jewels within. I can't wait to see what Margaret and Caden bring to this story now that they are at the head. I simply enjoyed too much all of the flashbacks outlining Doc and Jury's unique friendship. They were entertaining, and often hilarious.

I wonder what the tetrarch is really like? He's obviously evil incarnate, and very good at hiding it... The weirdness of everyone physically not even being able to mention a bad word against him was the biggest suspicion. But then there's all of the ways in which he so obviously is corrupt. Then there's this new man that brought the conclusion home, that has requested such an egregious favor of Doc, breaking the devil herself from her cage he said? Something to do with a Black Shaman?
Profile Image for Simon Howard.
358 reviews
June 7, 2024
The Immortal Doc Holliday: Instinct (The Immortal Doc Holliday Series Book 4)

my review:

If you seek a long and happy life there is one thing you must never do... Cross Doc Holliday.
Thomas Jury has been kidnapped, by his own family no less!
There is nothing that Doc won't do to save his friend from a fate worse than death...
And you really don't want Doc Holiday coming for you. The only problem is he is on a one man collision course with the most powerful Witch family on the planet... They have numbers, a studied history and power, he has his charm, his cards, his knives and of course lady luck.
This is the fourth installment in what is turning out to be a wonderful must read series.
Fast paced, funny, dark and dangerous with loads of action, death and destruction. Doc is a hard hitting, whiskey drinking one man stop for justice, his kind of justice... But if you're his friend, then nothing will stop him from helping you. I am so looking forward to reading the rest of Doc's adventures.
Profile Image for Patrick.
29 reviews2 followers
December 23, 2025
This book was a wonderful read even thought I was having a hard time sitting down and enjoy reading it. Took me way longer to read due to life, not the story.

This book is the true meaning of what it means to be friends. Doc faces challenges for his friend and tries to make sure he doesn't do more harm in helping. His focus is on his friend and he proves he would do anything to keep his friend happy.

Docs perception of people is wonderful. Watching him decide on how to deal with someone and the thoughts that grow through his head is what I think all of us think sometimes.

While focusing on their friendship, the story keeps adding small bits for later. I may have gotten to the end of Instinct but we aren't at the end of the bigger arc.

This has been such a great series to get involved in. I tell people if you love a bit of Western and a bit of Magic and great storytelling, this is for you.

Patrick
1,317 reviews4 followers
December 31, 2024
Thomas Jury and been taken against his will be his family because he is supposed to be married. Jury doesn’t want to marry and the witch he is betrothed to is not a nice person.
The Jury family is all about power and Thomas isn’t.
Doc knows his friend isn’t a willing participant and is out to rescue him no matter what, even going up against the most powerful witches in North America.
Doc has a big job ahead of him. With the help of a few new friends, some unconventional methods and plans and a lot of luck, he gets busy.
This book gives a lot of insight into the witch attitudes, especially the Jury family.
There is a fair amount of action, suspense, surprises, some humour but no real mystery this book. The interactions between Doc and Jury really are one of the best parts of these books.
It was an enjoyable read and the future is looking even more interesting.
830 reviews
September 7, 2021
Knew I would..

I just knew I would love this and I did. To enjoy I would strongly recommend that you start at the beginning of the series . I cannot wait for the next book only that's not till June 2022 soon have time to read the series about Andrew which was on my to read list. Highly recommend this author.
Profile Image for John E.
697 reviews2 followers
September 7, 2021
Go doc go

Lesson to be learned - if a friend of Doc Holliday is getting married, invite doc to the wedding. This series just keeps improving and Doc Holliday is a phenomenal immortal, anti hero. With hints at a tie in to another Crumley series, this book more than holds it own as a modern folk tale.
454 reviews3 followers
October 9, 2021
Another good read

It's hard to describe what I thought of the book. Doc is a very interesting... And entertaining character. He did things i did not expect. But it was entertaining to read about. I did enjoy the read. Now I just need to see what trouble him and Thomas get into next.
82 reviews
December 7, 2021
Now THIS book was great!

I really enjoyed this book bcz of Doc's friendship with T. Jury and it reminds me of myself and my best friend! Both clash, arguing back and forth back and forth, and it's SOOO fricken funny!

If you've read this far, keep reading bcz this proves that you'd go to the most extremes for a good friend!

And it's fckn funny hell!
1 review
September 9, 2021
Great series. Great author

I have come to love all the stories that this M.M. puts out. They draw me in and keep me entertained and amazed. I just wish I could stretch out the reading so I could indefinitely continue the enjoyment that I receive.
Profile Image for Louise.
784 reviews3 followers
October 10, 2021
Still mostly fun

Doc is a cool character to read. He's interesting and clever and good with kids, but some of the things he does, don't always feel like they make sense. Good books though
Profile Image for Elizabeth Meadows.
232 reviews11 followers
March 21, 2022
Book 4, then book 5 obviously

I really should just buy box sets of books when I fall into a book. The trouble with these e -books is that you never feel like you’re running out of pages. The Immortal Doc Holliday is addicting, fun, violent and naughty. Now, I need book 5.
99 reviews2 followers
November 22, 2022
Great series

This is the first.series I've read by this author, and after starting it I wish I had found him earlier. The books are well written with no glaring mistakes in either the story or the editing to pull you out of the story..
95 reviews
April 24, 2024
Amazing another entry to Doc's life. We learn more about Jury's family. We also learn that Rot mites are a thing. To end it all, even the Hidden's politicians are corrupt as they can be. Though, who is this Black Shaman, and why does Doc call her a Devil?
This entire review has been hidden because of spoilers.
Profile Image for Teresa .
1,909 reviews3 followers
May 30, 2025
Marriage breakout

Book four continues, Doc goes to save Jury from his family and a unwanted marriage a interesting storyline.
Frankie is not related to the bakers but what is she? I'm not sure she is human.
Profile Image for Cynon John Joness.
33 reviews1 follower
September 5, 2021
Great read

Another great read thank you m.m really enjoyed this book as much as all the other can't wait for the next one as always
Profile Image for Dana Delamar.
Author 12 books471 followers
October 24, 2021
This series is so much fun! Each book has made me laugh out loud. Can't wait for the rest of this series!
73 reviews
January 4, 2022
They keep getting better

Another great book I just can't stop reading this series each book just gets better and better . can't wait to read the next one
Profile Image for J Noble.
14 reviews
March 29, 2022
Just gets better.

I am loving this series so much. Doc is definitely a wonderful character and Jury is quickly growing on me.
268 reviews2 followers
May 18, 2022
be sure to read this series in order or you will get lost in what is going on. fast action read gotta love doc.
1 review1 follower
July 3, 2022
Fun to read!

This series is a must read for anyone who likes adventure and sci-fi. Fast moving. Lovable characters. Interesting situations. Most importantly, NOT predictable.
3 reviews
November 16, 2022
Great personalities

Excellently written, adventure, mystery, magic and some comedy. Pick your favorite characters and how they interact with Doc Holiday. Fun
26 reviews
June 4, 2023
Excellent series

Well written fast moving story ,decent character development and always another twist around the corner. Read the first four in a day
Profile Image for Kathy Brickert.
3,478 reviews17 followers
June 13, 2023
Exciting

Wow! Doc Holiday can twist in so many directions! And he needs every trick in the book to rescue Jury from his family! Good read!
Profile Image for Tracy Smyth.
2,185 reviews4 followers
September 14, 2023
I really enjoyed this book. Doc had to work really hard to solve all of the mysteries and to get Thomas out. I look forward to the next book in the series
Profile Image for LexiLikesLiterature.
432 reviews4 followers
September 23, 2025
This is a prime example of having a simplistic plot but filling it with such dynamic characters and drama to get the bang for your buck. This novel is very straightforward, Doc wants to save Jury from a marring woman who will eventually kill him. And he has to do it without killing those responsible.

Loved it. No complex drama, no elaborate plots. To the point action... lots of action.

The narrator, Micheal Cummings, was great.
Displaying 1 - 27 of 27 reviews

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