Emily Louise is certain that the new girl moving in next door will be simply awful. Working herself into a frenzy (in long passages of text that take the conceit just about as far as it can go), she imagines a terror of a child named Shelley Boo who is a swing swiper, eats nothing but peanut butter, has “drillions and drillions” of baseball cards, and steals Emily’s best friend, Henry. Stone’s exuberant color drawings, filled with whimsical animals and reminiscent of folk art, are less effective here than in What Night Do Angels Wander? (1998). Children will still identify with Emily’s anxiety about a new neighbor and share her relief when she finally does meet the infamous “Shelley Boo,” who is really named Elizabeth. (Picture book. 4-8)