Ellen laughed and turned toward a cupboard whose door she opened. “A discovery! A discovery!” she cried. “Come here, Mabel. See what I’ve found.”
Mabel hurried over to the corner where Ellen stood examining something she held in her hand. “What is it? What is it?” Mabel inquired.
“A card with a name and a date. Some one has been here this year before us. See.”
Mabel took the card and read, “Compliments to the ghost.” Then followed the initials R. M., the date, and the engraved name Robert MacDonald. “What a lark!” she exclaimed. “I wonder who Robert is. He has an imagination, whoever he may be.”
“Let’s write something on the back of the card and leave it,” suggested Ellen. “We’ll come back some day and see what happens.”
“Done,” agreed Mabel.
After consultation they decided to write: “Thanks for compliments. With hopes for a better acquaintance, The Ghost.”
“That will whet Robert’s curiosity if he ever comes here again,” declared Mabel.
“And it is a sort of adventure for us,” responded Ellen. “I rather hope he will come again, don’t you, Mabel?”
“Yes, for it will be sort of exciting for us to follow up the affair. We must make it as mysterious as possible, and never, never let on that we have anything to do with it.”