Beverly Lewis 
Upside-Down Day (Cul-de-Sac Kids Book #23) 

It’s school spirit day at Blossom Hill School, and everyone’s enjoying the fun. Especially Abby Hunter’s teacher, Miss Hershey. She does all sorts of wacky things, like wearing her clothes backward.And there’s the new girl at school with a BIG secret. Leslie Groff–with bright red pigtails–dares Abby’s class to guess her secret. In just one school day!Can the Cul-de-sac Kids do it? Or will spunky Leslie outsmart them all?