I am a book!

This book is such a rascal! Don't believe it? Quickly open it and see for yourself! The book loves riddles, jokes, and funny stories. And right now it really, really needs your help to uncover a tiny, tiny secret. They say that in the school where the book lives, a spirit has appeared! It either plays the piano or causes a ruckus in the classroom… We need to catch it urgently! So, will you help? You won't be bored with this book! Scratch its back, chat with it, or jump together. And when you get tired, the book will tell you some very funny stories. You'll laugh so hard you'll fall off your chair! The 'Little Evil Book' is thrilled with it!