De wereld in!
- 295 pages
- 11 hours of reading
The fourth book in a series of 4. This book too was used in school to learn children how to read. It is also a book about the adventures of children a little bit older than in book three: Frits, Betje, Marietje en Jantje. They discover the world and have now reached the 'outer circle'. They are ready to go into the world.