Marks Uve Klings 3 books

Selling a set of 3 books.
Author Mark Uwe Kling's "The Day When..." series of 3 books.
The first two parts are suitable for younger children, the last part is somewhat tricky as it describes sexual content and includes pictures 🤭 At our home, a 7/8-year-old read it, and it was OK. But perhaps the third part could be read a bit later 🫣

The price for all 3 books is €15 (+shipping).