Kefir, Gavrosh and Ricochet. 3. Ruby, the witch and the sprat muffins

A new sinister crime in the city: a mysterious figure on a flying vacuum cleaner broke into a jewelry store and stole two rubies called "Rat's Eyes." Is it really to return them to the rat they once belonged to? Kefir, Gavrosh and Ricochet start the investigation. But in such a case, a cat is essential. The beautiful Mathilda is already extending a... paw of assistance to the raccoons!