The Night Circus by Erin Morgenstern

The circus arrives without warning. Within Le Cirque de Reves black-and-white striped canvas tents lies an utterly unique experience full of breathtaking amazements that only appear at night. But behind the scenes, it is a battleground for a fierce competition: a duel between two young illusionists, Celia and Marco, who have been trained to fight since childhood by their mercurial instructors. Unbeknownst to them, this is a game in which only one can be left standing, and as the stakes rise and Celia and Marco tumble unexpectedly into love, it leaves every player’s fate hanging in the balance.