Unfortunately pretty much all Mandarin books I know have boring topics.... You need to get to a more advanced level to chose your own.
This said, the Chinese Breeze books are generally not too boring. One book is one short story, about 60 pages or so - but they are written in 100% Chinese (no Pinyin). Sounds probably difficult for you, but IMHO even a beginner can manage that. A whole book has only 300 or so characters. There is also a CD with (totally bad quality, not done by voice actors)