A girl at the end of the world.

Two brothers fighting for opposite sides.

And a dragon who can save them all... Or set the world on fire.

Trinity's world changed forever the day she stole Emmy's egg. Now she's on the run with the last living dragon and twin brothers from a war-torn future. Connor may have betrayed his mission to kill Emmy, but he'll do whatever it takes to prevent the coming dragon apocalypse. Coddling a temperamental dragon on its way to being the size of a house is no way to keep them safe. But Caleb can't stand to see Emmy trapped and miserable.

When a video of Emmy flying over the skies of the Texas Hill Country goes viral, the government closes in--and the future they've risked everything for is about to go up in flames. 



Learn more about and order!


Scorched is now available in paperback at your local bookstore or online. You can also now listen to the audiobook - downloadable on Audible or available to purchase in CD format. Hardcover and eBook formats still available as well.  

get shattered - now in paperback



For the first time ever, my novel GAMER GIRL is now available in ebook format as well as print in all ebook formats. 

Maddy's life couldn't get much worse. Her parents split and now she's stuck in a small town and at a new school. Most of the time, she retreats into her manga art, but when she gets into the Fields of Fantasy online computer game, she knows she's found the one place she can be herself. In the game world, Maddy can be the beautiful and magical Allora and have a virtually perfect life. And she even finds a little romance. But can Maddy escape her real-life problems altogether, or will she have to find a way to make her real world just as amazing as her virtual one?

For links to both print and ebook, click here.


The fiery conclusion of the SCORCHED series! 

Out now!

Once upon a time the world burned. 
Until a girl and her dragon smothered the flame. 
But the spark that ignited the apocalypse never went out. 
And the Scorch is about to begin. 

When Team Dragon rescues Emmy from the government lab, they think the future is finally safe. But they soon discover that Emmy has a secret--a secret so dangerous it could trigger the very apocalypse Connor and Caleb were sent back in time to prevent.

As a dragon hunter, Connor has committed his life to saving the world. There’s nothing he wouldn’t do to complete his mission… even if it meant betraying his brother and losing Trinity’s heart. Even if it meant doing the unthinkable. But a desperate choice meant to prevent The Scorch, may become the spark that sets the world aflame once more.

Smoked is available in hardcover, paperback, ebook, and audiobook formats.You can also order autographed copies directly from Mari.

Amazon * Barnes and Noble * IndieBound * Kobo * iBooks 

Book Depository (for international orders.) 


Or perhaps you prefer

Zombies IN disney world???

Check out Tomorrow Land!

Join Team Dragon!

Book trailers


The Camelot code 

All Sophie and Stu want to do is defeat Morgan Le Fay in their favorite Arthurian videogame. They have no idea the secret code sent via text message is actually a magical spell that will send her back in time to meet up with a real life King Arthur instead.

Of course Arthur's not king yet--he hasn't pulled the sword from the stone--and he has no idea of his illustrious destiny. And when a twist of fate sends him forward in time--to modern day high school--history is suddenly in jeopardy. Even more so when Arthur Googles himself and realizes what lies in store for him if he returns to his own time--and decides he'd rather try out for the football team instead.

Now Sophie and Stu find themselves in a race against time--forced to use their 21st century wits to keep history on track, battle a real-life version of their favorite videogame villain, and get the once and future king back where he belongs. Or the world, as they know it, may no longer exist.

The Camelot Code is available in print and ebook formats. To order from Amazon, click here

Love zombies? The Walking Dead? Disney World? Than check out TOMORROW LAND, a post-apocalyptic pilgrimage through a zombie infested United States to reach the last human outpost on Earth - The Magic Kingdom, is available as a $3.99 ebook for a limited time on most ebook platforms. Paperback copies are also available for purchase, either through Amazon or autographed through this website. CLICK HERE FOR MORE.