Author of Gripping Psychological Thrillers

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  I write morally ambiguous characters who are pushed to their limits and take matters into their own hands. I write fiction that brings the darker impulses we may not feel completely comfortable with into the light. My stories are full of lies and deaths and gore, but there is always justice. A type of justice that's not afraid to get its hands dirty. Join me if you will.

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Just Released!

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From the author of the breakout hit MY BETTER HALF comes a new story of the family ties that bind.

The truth doesn’t set you free, it only gets you killed...

Dead. They’re all dead. Her mother, her father, her siblings...all dead. Murdered in their own home, and Sian Ellis is next. But as she and her last remaining brother Gavin fight for their lives and search for answers, it becomes devastatingly clear that Gavin knows more than he’s saying. With no one to trust and nowhere to run Sian is forced to come face to face with her family’s dark secrets and the horrible truth behind her lineage...

What early readers are saying:
“This book did NOT disappoint!” ★★★★★

“The perfect twist!” ★★★★★

“This book is awesome!” ★★★★★

“I love how M.M. Boulder always makes the bad guys pay!” ★★★★★

Try It Now!

Available in E-Book, Print, and Large Print.  


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What's Coming Next

Coming Very Soon

Nothing says “I love you” like dead bunnies and chocolates...
As much as Diana Flynn wants to run away, she can't. She's worked too hard to rebuild her life, and she's not going to let some sadistic stalker steal everything from her. Everywhere she goes, everywhere she turns, he's there. Following her, leaving her "presents" and notes, taking locks of her hair as she sleeps...  When the law can't help her, she’s forced to take matters into her own hands and become the hunter instead of the prey.

Soon to be available in E-Book, Print, and Large Print. 


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Now Available


From the author of the breakout hit THE LAST DOOR comes a story of murder and marital unrest.

Lucille Stevenson has a secret.
Attacked at home by an unknown assailant, meek Lucille Stevenson should be dead, but she isn’t. She should have called the police, she should have told her husband, she should have done a lot of things, but she didn’t. Because what Lucille did to her attacker went far beyond self-defense. It was cold, brutal, and vicious, and if anyone found out, her life would be over. Unfortunately, her secret isn’t as safe as she thinks because Lucille isn’t the only one keeping secrets…

What early readers are saying:
“Brilliant!” ★★★★★

“The end did not let me down!” ★★★★★

“This book was fantastic!” ★★★★★

“A perfect psychological thriller with a perfect ending. So satisfying.” ★★★★★

Try It Now!

Available in E-Book, Print, and Large Print. 

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Now Available

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How far would you go to catch your mother’s killer?

Amy Harrison knows something terrible happened to her parents; she just doesn’t know what because she can’t remember the first twelve years of her life. Determined to uncover the truth, Amy begins an experimental treatment to recover her lost memories, and all she can see is blood.

Blood. Whiskey. Pink. A voice. Someone who loved her. Someone she loved. A killer. And death. So much death. Convinced her chaotic flashes of memory are real, Amy keeps pushing forward despite what it’s doing to her. But the further she goes, the more her memories take over her, pushing sweet Amy away and replacing her with someone else...

What early readers are saying:

“Holy Hell, fellow readers! What a roller coaster ride!” ★★★★★

“A perfect psychological thriller with a fantastic ending. Gripping!” ★★★★★

“A tense read with the perfect sense of imminent disaster.” ★★★★★

Try It Now!

Available in E-Book, Print, and Large Print. 

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Also Available: Writing As M.M. Crumley

The perfect children's action-adventure series
for fans of young heroes like Percy Jackson and Harry Potter!

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The Legend of Andrew Rufus is a new adventure series perfect for fans of heroes like Percy Jackson and Harry Potter.

Young Andrew Rufus wishes he’d paid more attention in history class when he inadvertently finds himself over a hundred and fifty years in the past. Even so he’s pretty sure his school books never mentioned anything about supernatural creatures, magical shamans, or human beings with godlike powers running around the American West.

Thrust into the forefront of a conflict he knows nothing about and with countless lives hanging in the balance, Andrew finds himself mattering for the first time in his life, and he’s not sure he likes it. Joining seasoned heroes in the fight against evil sounds like fun until you realize you’re playing for keeps and every decision is life and death.

Andrew soon learns that the campy folktales of legendary cowboy Pecos Bill are a lie. In reality Pecos is a steadfast warrior with unimaginable powers, like Hercules in the Wild West, a man even the gods fear. Pecos and his men are often the last line of defense between the innocent and the forces of darkness, and Andrew is about to discover firsthand just what it means to be a hero—whether he wants to or not.

“Inspiringly dark and filled with perfect banter, M.M. Crumley does a triumphant job emblazoning new life into the nearly forgotten folk character of Pecos Bill. Charged with emotion, growth, and heroes who make you believe in legends again. This is one action-packed adventure you can't miss!” -Editorial Review


What early readers are saying:
“Brilliant!” ★★★★★
“The end did not let me down!” ★★★★★
“This book was fantastic!” ★★★★★
“The best adventure; filled with perfect darkness.” ★★★★★

Try It Now!
Available in E-Book, Print, and Kindle Unlimited. 

Recommended for children ages 10 and up.

The Adventure Begins Here

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