The hit series is back, to charm and inspire another generation of baby-sitters! The Baby-sitters love getting new clients. So when the Lowells contact the club, everyone is thrilled. For Mary Anne, sitting for the Lowells is a snap, and the kids are adorable and obedient. But when Claudia meets the family, Mrs. Lowell will barely look her in the eye, and the kids are downright rude! The next time Mrs. Lowell calls the BSC, she requests another sitter--anyone but Claudia. Claudia has no idea what she did wrong, but the BSC won't rest until they find out! The best friends you'll ever have--with classic BSC covers and a letter from Ann M. Martin!