Cari Meister 
Clover Fields Fiasco [PDF ebook] 

Princess, the horse who believes she’s a cat, thinks she needs to hunt for her next meal. She quickly convinces her friends Seb and Snowy to join her on an adventure to the clover fields. They encounter scary circumstances that turn out to be not-so-scary after all. And when Princess spots food, it’s in a tree! Will the three horses figure out how to work together to get Princess her meal?