Oh, finally I can actually read The evil twin!
This Beware the Baby-Sitter was my second time with a Sweet Valley novel (after Special Christmas) and it wasn't a pleasant experience. I found this book to be a bit boring, shallow and almost totally absurd.
Jessica is almost a bitch as Margo, and that is a lot to say... But Margo is a bitchy girl, and however flat - like every SWH character - I quite like her bacause she is crazy, while Jessica is a sweet girl only in the words of descriptions in these novels and not really in my opinion.