America's favorite series returns with a new look and a Netflix TV show. Mallory and Claudia are helping Stacey unpack from her move back to Stoneybrook when they find an antique trunk in the McGills' attic. Stacey doesn't want the dusty thing, so she gives the trunk to Mallory... who finds an old diary in the bottom of it. The diary once belonged to Sophie, a girl who lived in Stacey's house in the 1890s. As Mallory reads deep into Sophie's diary, she discovers a mystery. There may be ghosts that haunt Stacey's house! The Baby-sitters have one big mystery on their hands to solve. Because Stacey's house isn't big enough for her, her mom... and a family of ghosts! Ann M. Martin is the creator of The Baby-sitters Club, which has more than 190 million books in print, making it one of the most popular series in the history of publishing. Her novels include A Corner of the Universe (a Newbery Honor Book), Belle Teal , Here Today , A Dog's Life , On Christmas Eve , and the Main Street and Family Tree series, as well as the much-loved collaborations P.S. Longer Letter Later and Snail Mail No More with Paula Danziger. Ann lives in upstate New York.