Another adventure awaits as The Magnificent Lizzie Brown travels up to the green hills of Scotland, where legends of mystical creatures abound. At the circus's premiere performance, a wealthy, young orphaned girl becomes enthralled by the magic of the big top. After the heiress tries to runaway from home to join the performers on their journeys, her uncle tells her to forget about such silly things. But soon after, the girl vanishes. Has she run away again, or, as some of the locals claim, have fairies spirited her away forever? Only Lizzie and her friends can find the girl and sort fact from fantasy.