"Surprised, madam!" exclaimed Walkirk. "I am astounded."

"Well," said she, "that sort of thing will happen occasionally. The people on this island have been expecting a visit from you gentlemen, but I really do not know where any of them are. It is not always easy to find them, but I will go and see if the Sand Lady is in the house, and if so I will tell her of your arrival. Of course," she continued, now turning to me, "you both will remember that in this place we put ourselves outside of a good many of the ordinary conventions, and are known by our characteristics instead of our names."

I assured her we understood this, and considered it an admirable idea.

"As you, sir," turning to Walkirk, "have met me before, I will immediately state that I am known on this island only as the 'Interpolation.'"

She turned to walk toward the house, but stopped. "We are all here to enjoy ourselves, and it is against the rules to worry each other with puzzles. I therefore will at once say, in explanation of my name, that I have briefly thrust myself into the life of my friends; and of my appearance, that the Middle-Aged Man of the Sea, who is a very self-willed person, caused the costume which I ordinarily wear, and in which I arrived, to be abstracted and hidden, so that I am obliged, while here, to wear clothes belonging to others. Now, you see, Mr. Understudy, everything is as plain as daylight."

"They have been talking about us," I remarked, as the lady rapidly walked away, "and of course, having recognized you, she must know who I am."

"Know you? There is no doubt of it," he answered. "She must have seen you often in the village, although you may never have noticed her."

"I certainly never have," said I; "in fact, I make it a point not to look under the bonnets of those gray-garbed women."

"When you meet them in the street?" he asked.

"Yes," I replied.