Eleven! She must be on the roof when the next bell tolls. Twelve! With a deep breath, and only half believing she will be safe, Cara jumps off the church roof and into Luster, land of the unicorns.There she meets many wonderful creatures -- including hairy Dimblethum and the monkey-like Squijum -- but the most magnificent of all is a young, rebellious unicorn named Lightfoot. Together they set out to find the missing Unicorn Queen before a mysterious stranger banishes all unicorns forever. Can Cara deliver her message to Luster's might Queen in time? Or will this be the end of the unicorns?Trickery awaits. Destruction looms. The journey of a lifetime begins...