Rush by Eve SilverCall Number: Teen Sil Vol. 1
As Miki Jones, a junior at Glenbrook High, is "pulled from real life," thinking she is dead, she struggles to understand a Mad Hatter universe. She encounters Luka Vijic, a former friend who has returned to Rochester, New York, from Seattle. He tells her that he, too, was "pulled" and that they are both alive, except when they are on a mission. As long as they are successful in this game that is not a game, they get to return to their lives, a process that will repeat itself. Their goal is to kill Drau, alien beings seeking to conquer Earth. (description from School Library Journal)