Babysitters Club: Kristy’s Great Idea. Ann M. Martin. 2010.

Book 1 in the series.

Kristy thinks the Baby-sitters Club is a great idea. She and her friends Claudia, Stacey and Mary Anne all love taking care of kids. A club will give them the chance to have lots of fun and make tons of money. 

But nobody counted on crank callsC uncontrollable two year olds, wild pets and parents who don’t always tell the truth. Then there’s Stacey, who’s acting more and more mysterious. Having a baby-sitters club isn’t easy, but Kristy and her friends aren’t giving up till they get it right!