I have to personally say this was an excellent book. I would recommend this book from ages 12 and older. I say 12 and older because I bought the book when i was 11 (5th grade) and thought wow this is a huge book i will never finish it and put it away as a dust collector, but when you get to 12 and older you don't see it as quite as long but actually merely a good sized spectacualr mystery. This book has to be the best mystery I have every read, and it is very excting and it unfolds different mysteries at differet parts of the book rather than all at the end as a usual book would indicate its final revealing mystery. When I was reading this book I could hardly take myself from it. I bought it when I was younger but recently picked it up and wished i had read it sooner. This book has taken the place of best book for me. READ THE THEIF LORD! IT'S A GREAT MYSTERY,