Topper thinks summer vacation is boring. He misses his father who is sailing the seven seas. He can't figure out Sille who's cute. And his best friend, Viggo, always has to help out his punctilious dad, Mr Lion, in the café on the first floor of the red house where Topper lives on the top floor with his mother. One day, Topper finds a magic pencil and when he draws a rhino on the wall, the drawing comes to life! While Topper and Viggo try to keep the rhino, which they name Otto, well fed with black bread and raspberry soda before it devours all the furniture, Mr Lion pleads with the local authorities to come and remove the stomping pachyderm.

Karla invites Katrine to spend the holidays with her, hoping they might become best friends. As it turns out, nothing goes as planned. Karla meets Jonas and falls in love for the first time, and she nearly forgets all about Katrine. However, the two girls are forced to put their difficulties aside for a while, as they join Jonas in exposing a local gang of thieves.

Karla met Jonas during a summer vacation at the lake. After being unable to stop thinking about him and their kiss she phones him, making up a school assignment about children living in an orphanage, which is precisely where Jonas lives.

My sister's kids this time are going to Jutland.

This time, the children's parents have gone on vacation to New York, and it is up to Uncle Erik to take responsibility for his nephews and nieces, or at least try to. Everything seems to be going well, until Jan and Michael take a little drive in their father's new sports car. The mechanic's bill comes to $30,000, so the children persuade their uncle to open a hotel in their own house. The hotel quickly fills up, but not all of the guests are easy to please. And the strict Mrs. Flinth is definitely not happy with the children's successful hotel business!

This time our already familiar family moves to Africa in order to save endangered wildlife.