Carmel and his friends have not yet had time to relax from Oliver's kidnapping and a new challenge is already breaking into their lives: Mila's strange little nephew, who arrives at the castle and tests everyone's patience. But all this is forgotten when Gol wins a prestigious puzzle competition and invites the gang to spend time in the mysterious castle of the genius Professor de Vil. The excited children set off enthusiastically, without suspecting that an old enemy is behind the matter. Will Carmel succeed in rescuing them from danger? And maybe this time help will come from an unexpected source? Join Carmel and his friends for a particularly funny and puzzling adventure. "Being deeply influenced by Roald Dahl, by his wonderful evil characters, and in a European Dickensian atmosphere of fairy tales, Barnea-Goldberg managed to write a book that conveys a sense of local, contemporary and entertaining playfulness." Tal Marmelstein, Israel Hayom "A fun book you can't stop reading about true friendship, courage, self-belief and love." Dana ben Shlomi Mako "Carmel is a non-sucking cat. He may remind you of Garfield, but he exudes a distinct Middle Eastern aroma." David Rap, Haaretz "A successful book that is fun to read." Children who like to read comic books and shy away from prose books may use this book to discover that reading non-comic text can also be fun and exciting.