Ignacy and Mela on the trail of a thief. The mystery of the cat...

The tenth volume of the inquisitive detectives' adventures. When a stray cat, Grzanka, enters Ignacy and Mela's home, the young detectives' relatively orderly lives are turned upside down. The children are tasked with training the playful pet. But teaching Grzanka to roll on the floor is a piece of cake compared to the challenge that soon awaits Mela and Ignacy. During a family trip, the kitten disappears... Will the young detectives find the animal? And what does a huge black creature have to do with it all? These detective stories about twins, as unlike each other as a dog and a cat, will take you on a journey into a world full of surprises, where anything can happen. Even you being the first to spot a thief!