The new children's book series about the brave mermaid Smeeralda and her underwater friends! For the mermaid Smeeralda, the world comes crashing down when her mother Coralline announces at the beginning of the summer holidays that they will be moving in a few days – to the other side of the sea! There, Coralline plans to reopen the former Grand Hotel 17 Waves. However, Smeeralda's mother has fallen for a real estate shark: the hotel is completely run down and needs to be completely renovated first. And the opening is supposed to take place in just a few days! Luckily, Smeeralda already has some ideas on how she can help her mother! An adventure full of colorful sea creatures, illustrated by Petra Bergmann.