The young marmots Zappel and Schlafi are about to start school. Zappel, who is very adventurous and doesn't like to sit still, is excited to learn lots of new things. For the dreamy Schlafi, it's rather difficult to leave his burrow. He much prefers sleeping to going on adventures. Together, however, they not only master their first day of school, but also discover the world together. The story is written in dialogue form and can be read aloud or quietly, in pairs or alone.