Kristy and the secret of Susan /
Ann M. Martin.
- New York : Scholastic, c1990.
- 152 p. ; 20 cm.
- Baby-sitters Club ; #32 .
- Martin, Ann M., 1955- Baby-sitters Club ; #32. .
Thinking it unfair that her new baby-sitting charge Susan gets treated differently because she is autistic, Kristy decides to change that situation.