Claudia and Stacey--who used to be best friends--aren't speaking to each other because Claudia thinks Stacey is a liar, a cheat, and a boyfriend-stealer, so Claudia sets out to make new friends. Original. Ann M. Martin's The Baby-Sitters Club series has over 176 million copies in print worldwide and inspired a generation of young readers. Her novels include the Main Street series; Belle Teal ; the Newbery Honor book A Corner of the Universe ; Here Today ; A Dog's Life ; and On Christmas Eve ; as well as the much-loved collaborations P.S. Longer Letter Later and Snail Mail, No More with Paula Danziger. She lives in upstate New York.