Fly by Night

I had actually read Frances Hardinge's book Face of Glass before this and I enjoyed it, but I think I liked this one slightly more, likely due to the nature of the story being something I tend to gravitate towards anyway.
Hardinge's stories tend to be unique, which is a welcome thing among YA books. I also really enjoy her writing style - it is very lyrical and often how she describes things manages to paint a very textured and layered picture in your mind.
Fly by Night is an obvious love letter to words and books, but also pulls off an adventurous yarn that is at turns humorous, mysterious and engaging. I really liked main character Mosca. She's resourceful and thoughtful, even though she doesn't always get it right, she does do her best to make amends.
I don't think another book comes to mind that I'd compare it too, which is part of its strength. Thoroughly enjoyable!