The book can be found HERE.
From the back cover:
An all-new novella from the author of Those Below The Tree House and Various States of Decay!
On the eve of his twenty-third birthday, cowhand Trevor Morris finds himself in the drought-ridden town of Silverton, playing cards with Sandy Ankrum, the local sheriff's shady tax collector. Outside sits his pride and joy, a young horse named Calamity.
But Sandy and his men aren't after Trevor's money.
They want his horse.
And as night falls, the town of Silverton will become a battleground of monsters and men. A place upturned by heartache and revenge.
A town ravaged by absolute...Calamity.
Book 3 of the Welcome To The West series