Love for a poor old plow horse sees Jessica on an exciting new adventure when pitted against malicious wheels-for-legs Wheelies, Mesozoic-era Pterodactyls, deadly stone Gargoyles, and enthroned as a Goddess Queen by fun-loving Pixies. Join her until, with Beak, a wise know-everything hummingbird, Junk Dog, an itinerant peddler, and Dinky, an exuberant little Unicorn, she wins ultimate victory over Esmeralda, the ageless evil-scientist leader of a band of mercilessly militant girls the same age as Jessica herself.
