Status Updates From Benito Juarez

The book and the comments about the book are all in German. That's fine - I can read German. It seems that I'm the only one who thinks this book is too fantastic to be true. I enjoyed the other 3 books in the Rodriganda series but this one is too unrealistic. Seven people were captured by a pirate and he put them on a small island. They all survived on this island for 18 years before being rescued. Hmm???