The Love Talker by Elizabeth Peters
There might be worse fates than spending a few months at Idlewood, Laurie thought as the Chicago winter howled around her. Certainly her Aunt Ida's invitation was well intentioned, and she couldn't really have meant what she said: "I have nothing of which to complain, considering my age. I only hope I will be taken before my mind fails. Fairies in the woods, indeed!"