In this 4th book of the Starlight series, Miranda and her classmates become lost in a cave. Miranda saves Grandpa from being killed by a loco cow, but not before he is injured. Mr. Taylor hires a jockey, expecting Miranda to teach Starlight to accept him. Mom plans to marry Adam Barber, Miranda's worst enemy. Wishing on Shooting Star, Queen's foal, seems to bring amazing answers to Miranda's problems.