Thanks for your comments. All this happend over 10 years ago now. After reading your post though I remebered a comment from a friend whom I told this story to. He said it could be possible that something else (something malevolent ? ) used my grandmothers passing over to "slip through" into this realm. Maybe a sort of loophole gets created whenever someone dies that allows someone/something else to re-enter? if this is what happened, I really don't know why it came to see me? Glad this was the only occurance!