One evening, Clone Clou, the little witch, is late coming home. Her assistants, Hush and Acacia, begin to worry. Their worry grows when they receive a threatening letter in an unknown language.

Clone Clou is in danger!

From whom, I wonder? From the chief general Abrontio Baroufi, from the strange giant Alimono, or from the terrible king Trechedeipno and his wife, Queen Fagissa Florra?

A flying train, a giant cave, three owls, a lost sword, a magical recipe, a dark kingdom, an interrogation, an escape, a watermelon experiment laboratory, an experimental prince, an unusual war, a bunch of mishaps, misunderstandings and secrets, constant twists and unexpected developments keep us in suspense and lead the heroes of the story into great dangers and entertaining adventures.