I found this book easy to read as it is a good match for my level of Russian. It taught me some new vocabulary which I plan to memorize by listening to Kristina read the text many more times. The combination of text & audio works well, as it is important to train the eye to recognize words and the ear to pronounce them and recognize the sound of proper grammatical phrases. The book tells a good story, even if the ending is somewhat non-conclusive.