I’ve read this first book myself, and it’s a huge success in Denmark – I’m pretty sure that it will be a hit here as well. Don’t know whether it’s also translated into English already, but the German translation by Friederike Buchinger is very good. Available from Carl Hanser Verlag in Munich.
My short summary: if you happen to have a daughter of about 10-12, and if she loves animals and “the wild world”, let her read it. I bet she’ll ask for more soon.