Mikołajek, Joachim, Eusebiusz, Maksencjusz, Alcest, Ananias… These are the names of the most popular rascals in the history of children's literature. Their adventures have been entertaining Polish readers for half a century!  

Over the years, the books were published in an unchanged graphic design - this characteristic square format was recognized by every fan of the series.  

For the fiftieth anniversary of the first Polish edition, we have prepared a completely new edition of the series. However, the slightly larger format and new covers hide the same hilarious stories that continue to win new readers of all ages, delighting new generations.