Polish children's book titled "Królik Franek i prawda o zaginionym telefonie" (Królik Franek and the truth about the lost phone) by Marta Krzemińska, illustrated by Ewelina Jaślan-Klisik. Key information about the book: It is part of the "Królik Franek" series, which follows the adventures of Franek, a preschool-aged rabbit. The series addresses children's emotions and everyday situations, like anger, sadness, or fear. Each book includes questions and answers related to the topic, developed with a child psychologist. This particular book focuses on the theme of a lost phone. There are multiple books in the series, with titles such as "Królik Franek i historia nieśmiałego misia" and "Królik Franek i draka z siostrą".