Martin, Ann M.

Mary Anne and the Baby-sitters Club investigate the mystery behind some strange things that have been happening since Mary Anne brought home a music box she found behind a secret panel in her grandparent's basement.

Luke Martinez, one of the Babysitter's newest charges, has a secret that is making him very unhappy, and the BSC members believe it must have something to do with the mysterious fire at his house and the plans of a mean developer who seems set on destroying Stoneybrook.

Jessi and the BSC have their hands full with Danielle now that she is feeling better. Because she is battling leukemia, Danielle's parents are allowing her to do anything she wants, even though the Baby-sitters have warned them that she is out of control.

When Stacey makes a movie, she uncovers secrets that threaten her friendships.

Mary Anne decides to use her friends to get revenge on Cokie Mason.

Kristy and her older brother Charlie usually get along great, but their relationship hits a snag when Charlie starts dating Angelica--a girl Kristy just knows is going to cause trouble.

Bored with their own homes, Fran and Emma agree to trade houses, but then they begin experiencing grave doubts.

Thirteen-year-old Stacey needs the support of the Baby-sitters Club when the pressures of school, work, and home pile up and her diabetes puts her in the hospital.

When the Baby-sitters are assigned jobs at the Washington Mall, they see shoplifting and expensive things being stolen. Stacey has a big scare, and the group is determined to solve the mystery.

While Claudia baby-sits for the grandson of the late folk artist Grandmother Madden, she searches the house for the missing paintings Grandmother Madden claimed she destroyed.