Paperback
Spanish language
Published June 20, 1988 by Molino.
LA Gran Idea De Kristy (Martin, Ann M., Baby-Sitters Club. 4.) (Paperback, Spanish language, 1988, Molino)
Paperback
Spanish language
Published June 20, 1988 by Molino.
Follows the adventures of Kristy and the other members of the Baby-sitters Club as they deal with crank calls, uncontrollable two-year-olds, wild pets, and parents who do not always tell the truth.
For the graphic novel based on this book, see Kristy's Great Idea–Baby-Sitters Club Graphic Novels #1.