Jessica thinks the cool thing about having a twin is that you can always count on her to help you out. Especially when your twin is superperfect, ultrasweet, never-gets-mad Elizabeth. But... Elizabeth doesn't understand why Jessica can't solve her own problems for once. Really, if she didn't love her sister, she might have to strangle her!
This book is part of the Sweet Valley Junior High Books series and is book #11 in the series.