This book, written by Jacek Wasilewski, is a witty but also very apt summary of the key aspects of Polish grammar. The author takes the reader through nooks and crannies and presents groups of bandits, such as the Case squad, the Noun brotherhood, the Verb team, or the Particulate participles, describing their function in the language underworld and alerting of any dangers lurking nearby. Absorbing this precious knowledge will definitely facilitate the use of the troublesome Polish language in everyday life. The underworld was cunningly illustrated by Joanna Czupryniak, who invites the reader to an out-of-the-box interpretation of grammar complexities. It is a must-read for all enthusiasts of the Polish language, as well as those, who are at odds with it.