Kristy's Worst Idea (Babysitters Club #100) by Ann M. Martin

What's going on with the BSC? Meetings have never been like this before. Members are showing up late, arguing about jobs, even pushing to get rid of Friday meetings. Extra schoolwork is making everybody tense, too. Then a favorite charge gets hurt, right under Kristy's nose.

It feels like the last straw to Kristy. Maybe she's not such a good sitter — and maybe the Baby-sitters Club isn't such a great idea. But Kristy wouldn't disband the club...would she?