The hit series is back, to charm and inspire another generation of baby-sitters Jessi knows a secret language! She learned it from Matt Braddock, the BSC"s newest charge. Matt"s been deaf since birth, and he uses sign language to speak. Since Jessi is Matt"s baby-sitter, she"s been using sign language, too. Soon all the kids in Stoneybrook want to learn to sign… which keeps the Baby-sitters busy. Jessi"s the busiest of all: she working on another secret just for Matt. Will she be able to keep the secret and pull off her special event? The best friends you"ll ever have - with classic BSC covers and a letter from Ann M. Martin!