Karen's mermaid /
Ann M. Martin ; illustrations by Susan Tang.
- New York : Scholastic, c1994.
- 101 p. : ill. ; 20 cm.
- Baby-sitters little sister ; #52 .
- Martin, Ann M., 1955- Baby-sitters little sister ; #52. .
Karen tries to impress Margo by saying that she saw amermaid. But then it seems the mermaid really exists!