Happy Go Lucky was beginning to feel at home at Big Apple Barn until a new pony moved in named Sassafras Surprise, known as Sassy.

"The spring festival is in town! Happy Go Lucky and his friends from Big Apple Barn can't wait to see what it's all about. There will be games, decorations, and the ponies will even march in the big parade! But then Roscoe goes missing at the festival. A trip to town could be dangerous for a tiny barn mouse! Can Happy find his big-eared-buddy -- or will Roscoe be lost forever?"--P. [4] of cover.

Pony Happy Go Lucky is excited by the coming winter holidays, but worries that he may be sold to a new rider.