My friend was raving about The Night Circus so I'm a bit ashamed that it has taken me this long to read.
I am so glad I have though.
Two illusionists are pitted against each other by their guardians in a 'game' set in a beautiful circus. It reminds me of Jonathan Strange and Mr. Norrel but not as long and much more beautiful and romantic. The story has inspired many people and you can find lots of Night Circus inspired art around the internet. It's such a well written world my dreams were somewhat effected!
A film seems to be in the works and people are speculating/suggesting their idea cast. I liked this one