The Surprise of Haruhi Suzumiya (light novel) - Nagaru Tanigawa

WHERE HARUHI GOES, TROUBLE FOLLOWS! The two-story lines from The Dissociation of Haruhi Suzumiya continue! A new member joins the SOS Brigade who may be more than just the eager freshman she appears to be. As the dual realities converge, the club members quickly realize that their latest recruit may have the ability to unite both timelines...and save the world in the process. Join the frenzy and fun of the phenomenal bestselling series that took the world by storm!