I got this book on my daughter's recommendation and I read it from beginning to end in nearly one sitting. I liked this story a lot. Although a bit predictable at times, it was still a great read and I would recommend it for those over 18.
The second book is out, "Saving Axe," and I've read that one as well. This book had more action -- much more action -- than the first one. As with the first one, I couldn't stop reading once I started. I recommend for those over 18.