The plot of the book consists of a series of funny, sometimes blood-chilling events that happened to the brother and sister. Julka and Albert, who for a whole week had to take care of their younger brothers, Błażej and Hubert, had various experiences. They learned that they could count on each other and that they had reliable friends ready to help them whenever they needed. They also understood what the family meant to them. But in the first place, they realized that they were responsible for their family. And on that very day, their family life started to depend on them, too. The book is written with humour, it is full of jokes and it presents realistic situations and nice characters.