The hit series is back, to charm and inspire another generation of baby-sitters! Dawn thinks studying ecology is so cool. For a science project, she and Stacey are even teaching an ecology class for some of their baby-sitting charges. It's fun to get kids excited about cleaning up the Earth.But Dawn isn't through yet. She wants to start a recycling center at SMS. The BSC is all for it, but Dawn needs a lot of help. And lately she's been so busy lecturing people about being environmentally responsible that no one can stand being around her. Poor Dawn. She's trying to do a good thing--but she's driving everyone crazy!The best friends you'll ever have--with classic BSC covers and a letter from Ann M. Martin!