A bestseller from Japan!The third book about the magical adventures of a kitten princess, All children in the kingdom of Artesia are preparing for a grand event – a masquerade ball! Lala and her friend Polly thought out the images and prepared the outfits. However, they did not expect that uninvited guests would come to the party! For some reason, two sorceresses desperately want to get the princess's magic locket. And for his sake they are ready to go to the trick!Who are they? And why do they need this magical item so much?