Hahn, Mary Downing.

Wait till Helen comes : a ghost story / Mary Downing Hahn. - New York : Scholastic, 2008, c1986. - 184 p. : map ; 20 cm.

Molly and Michael dislike their spooky new stepsister Heather but realize that they must try to save her when she seems ready to follow a ghost child to her doom.

ISBN: 9780545103657 (pbk.) 0545103657 (pbk.)

Standard No.: 9780547028644

LCCN: 2008271732

Subjects--Topical Terms:
Ghosts--Fiction.
Brothers and sisters--Fiction.
Stepfamilies--Fiction.