Scarlet and her second grade class follow the adventures, mystery, and seemingly magical ways of their substitute teacher. Scarlet wakes up after a long weekend of fun. She is excited to share her trinkets for star of the week and see her teacher, Mrs. Dorris. Everything changes when she finds out she has a substitute for the day. And it's not the nice pretty one. It's the grouchy mean one that's rumored to be a real witch---Mrs. Finchy. Mrs. Finchy's wild antics, strict nature, and crazy hair make the rumors seem true. Through science experiments, a paper mache project, quiz contests, and an outlandish Halloween party, Mrs. Finchy gets the class to learn in new ways.Sheri Powrozek wrote this book for her students, hoping to lessen their anxiety. It can be scary having a new person in the classroom. This book provides a positive message and connects with the reader on a realistic level by using normal classroom situations. The author keeps it light and funny to keep the reader entertained.