"A lost pony is cause for a nighttime adventure on Chincoteague Island in this third book of a chapter book series inspired by Marguerite Henry's Misty of Chincoteague. Full Moon Fancy, Fancy for short, is a pony with a knack for getting loose. First she just tramples a herb garden, then she knocks over a wall of a chicken coop, so the hens end up all over the yard and down on the beach. When she gets out one too many times, Willa and Ben are worried...

Haley has difficulty training her foal, Starlight, to come when she calls, and finally one night when Starlight escapes, Haley's hard work pays off.

Grace is paired with Fancy, a Welsh pony, on her first horseback riding lesson, and even though Fancy is small, she and Grace learn how to ride together and compete in a race.

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