We were up in the mountains for a couple of days, staying in a cabin with some family members, including our 12-year old granddaughter. I was sound asleep in the downstairs bedroom when a loud knock sounded at the door. I sat straight up in bed and nudged the gardener awake. As I remember we were both so tired we went back to sleep as we heard nothing else. (And of course, he thought I was just imagining it.)
The second night I was getting ready for bed when a loud knock sounded again. Knowing our son was still up out in the living room I rushed to fling open the door and ask him what he wanted. He looked up, confused, and said, "What?" No one knocked at your door.
Still wondering the thought came to me that maybe our granddaughter walked in her sleep. I went up to her room and she was still awake so I climbed into her bed and we talked for awhile. I asked her if she had ever sleep walked. "No, but my other grandma also asked me that. In fact you are the third person to ask me." So I began to tell her the story of Heidi, which she has not read (but should) and the mystery of the open door in the city house where Heidi was living with Clara.
That's all it took to take me back to my childhood and one of my two favorite all-time stories: Heidi.