The impossible and the unbelievable are hurdles for Hannah War-Daughter, Fuzbud - the wizard's apprentice, and Saraly - Fuzbud's friend from the castle kitchen. Tup-tup - the cat who is the stable keeper also does his part.

What happened to the princess, and where is the Witch of Black Mountain? Can ancient evil destroy a pure heart? Are unicorns a legend only? Will the kingdom of Milara survive this latest peril?