America's favorite series returns with a new look and a Netflix tv show.

Kristy, Claudia, Mary Anne, and Stacey try to be prepared for anything when they baby-sit. So when they hear about the Phantom Caller, a jewel thief who's been breaking into nearby homes, they come up with a plan to keep their kids safe.

But when Claudia and the other girls start receiving creepy phone calls while they're out on jobs, they start to get really spooked. Will the mystery caller scare off the BSC?

Ann M. Martin is the creator of The Baby-sitters Club, which has more than 180 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.