“So the silly old ghost would not let you have any tea! You must all come in here and enjoy yourselves. I believe there is plenty to eat,” and leading the way Miss Dolly ushered them into the dining-room, where the table was laid with enough good things to cheer a king.

But when she had shown each of the four friends his seat there still remained a vacant place at the head of the table.

“Now, gentlemen,” she said with a naughty smile, “as you are all feeling much braver now, I am sure you will not mind if the Ghost sits down and has something to eat, too.”

The boys looked at one another and then at her, but Miss Dolly, taking no notice of their surprise, quietly seated herself in the vacant chair, passed a plate to White, and said—

“Now, Mr. White, please give the Ghost something to eat.”

·········

After they had all had a good tea, of course Bobbie Cargill and his sister, the Ghost, had to tell the others how it was done. This is the gist of what they said:—

Fig. 1.—Apparatus for producing ghostly sounds.

The opening of the door was a very simple matter. A loop was tied in one end of a long piece of strong cord or string, which was carried across to the wall by means of staples, to a concealed corner. The loop was slipped over the door-catch, so that when the other end was pulled this catch was drawn back, whilst the continued pull on the string made the door open. This loop was made of such a size, that as soon as the door had opened to its full extent the string slipped automatically from the catch, and could then be pulled away and out of sight.