The Too-Friendly Pony

Riders from Starbright Stables Bess, Dot, and Lily are on a camping trip to a state park. The best part? The park has wild ponies! The girls follow the park rules and avoid feeding the ponies. They watch the ponies from a distance. Then they notice one pony is overly friendly. It follows the girls around. And it has green frosting on its nose! Then they find cupcakes left all over the park. Is someone leaving food out for the ponies? The girls know that a pony that becomes too comfortable with people may need to be removed from the park. Can the girls solve this frosting-filled mystery before it's too late?