Publication date: June 11th, 2013
Summary from Goodreads:
So what's the game now? This, or the life I used to know?
When Miki Jones is pulled from her life, pulled through time and space into some kind of game--her carefully controlled life spirals into chaos. In the game, she and a team of other teens are sent on missions to eliminate the Drau, terrifying and beautiful alien creatures. There are no practice runs, no training, and no way out. Miki has only the guidance of secretive but maddeningly attractive team leader Jackson Tate, who says the game isn't really a game, that what Miki and her new teammates do now determines their survival, and the survival of every other person on the planet. She laughs. He doesn't. And then the game takes a deadly and terrifying turn.