In those days there were not quite so many houses behind our garden as there are now.

Your great-great-grandfather sold some of the land about that time, and then houses were built, but just then there were only two or three that overlooked one side of the garden.

One of them was a large high house, which was let in flats to various families, often visitors to the town, or strangers who had come for a short time for the education of their children, or some other reason.

It was not long before I discovered that the window I had heard open was in this house.

It was one on the second story, looking on to a little balcony which at one end was not very high above the terrace walk.