I am a book! Unpack me - 2

This book is the most unusual in the world! Believe me, it knows how to have fun even better than some kids. And it knows a lot of secrets. Press it closer to your ear, and the book will tell you a big secret… Yes, yes, there's a little thief in the city park… And the book really, really needs your help. We need to catch him. Good thing you're not a coward and not a clumsy one. So together you will definitely handle this task. And a couple more riddles… This book is a true friend! With it, you definitely won't be bored. Have a couple of pranks at school together and learn a few tricks. And the book knows such funny stories that you might fall off your chair from laughing. The 'Little Evil Book' is thrilled about it!