This is book number 11 in the Stink series.
Hie thee to Shakespeare camp with Stink to learn fake sword-fighting, spout silly curses, and prithee try to escape a kiss . . . BLUCKIt's spring break, and Stink is faced with a difficult choice: hang out at home with his sister, Judy, or become a Shakespeare Sprite with his friend Sophie of the Elves. Hanged be When Sophie tells Stink that there will be swordplay and cursing at Shakespeare camp, his choice is made. But wait How now? The eager young thespian hadn't counted on Riley Rottenberger being a Sprite, too. And he positively had not counted on being the only boy Fie upon't