Martin, Ann M., 1955-

Karen's big city mystery / Ann M. Martin ; illustrations by Susan Crocca Tang. - New York : Scholastic Inc., c1998. - 106 p. ; 20 cm. - Baby-sitters little sister ; #99 . - Martin, Ann M., 1955- Baby-sitters little sister ; #99. .

"An Apple paperback."

ISBN: 059049760x (pbk.)

Subjects--Topical Terms:
Mystery and detective stories.