This book was fantastic. Again, like the first book I read by Frances Hardinge - Well Witched/Verdigris Deep - I felt it was very dark, for a children's book. The world is different than anything I could have imagined. Generally, I'd say this kind of world isn't really my thing, but in this case, it worked out great. The language was absolutely amazing. Extremely well written. The characters are all exceptionally well depicted, especially the main character Hathin. I loved this book and I'd recommend it to anyone who likes well written books with strong likeable characters.