The mouse has a new friend with whom she roams around. They met at the cloud cinema. It's a gigantic dinosaur. But when the mouse invites the dino to her sleepover party, they realize: the dino is so huge that he can't fit through the door. Or in the words of Papa Mouse: "We're already four in this little hole. One more will make it complicated." This makes both the mouse and the dino terribly sad, as they were so excited. Fortunately, Mama Mouse has a clever idea and suggests to them: "Just sleep outside." Sleepover fun in the garden. Problem solved, everyone is happy. The first board book by Marc-Uwe Kling and Astrid Henn tells the story of the challenges in the friendship between the little mouse and the gigantic dino. The book is perfect for reading aloud, joining in, and sharing laughter and discovery. Ideal for all fans of Astrid Henn and Marc-Uwe Kling aged 2 and up.