Scholastic, New York, 1996, 1^st pr.  ISBN 0-590-56883-3.  Soft cover, 112+ pages.  Wraps show light edge and cover wear, tight binding.  Interior clean and unmarked with tanned/browning pages.  Trading cards removed.  ‘Gretchen and her stepbrother, Clark, hate staying at their grandparents’ house.  Grandpa Eddie is totally deaf.  And Grandma Rose is obsessed with baking.  Plus, they live right in the middle of a dark, muddy swamp.  Things couldn’t get any worse, right?  WRONG.  Because there’s something really weird about Grandma and Grandpa’s house.  Something odd about that room upstairs.  The one that’s locked.  The one with the strange noises coming from it.  Strange growling noises…’ (from rear wrap)