"Whom shall we have?" Mrs. Hampton began to count on her fingers. "The Habershams, and Edith Symmes, and Horace Penfield, and Warren and myself, and Marcia, and Wilfred Ames, and yourself." She paused, a look of dismay overspreading her face. "We'll have to have another woman. Who on earth shall it be?"

"A butterfly dinner without the Mariposa would seem like Hamlet with the Prince left out, wouldn't it?" suggested Hayden.

"Oh!" Kitty gasped joyously. "Mademoiselle Mariposa! Do, do, invite her. What fun! Do you think she will come? You know Marcia knows her, but she will not talk about her ever, because, she says, Mademoiselle Mariposa has requested her not to. So she will not say where and how she met her. Mean thing! Of course, I've only seen her in her little mask and mantilla. You do not suppose she would wear them to a dinner, do you? I am dying to see her without them. Horace Penfield knows her very well and he says she is very beautiful and deliciously odd. If it enters into her head to do anything she just does it, no matter what it is. And extravagant!" Kitty lifted her eyes and hands at once. "They say that her jewels and frocks are almost unbelievable. Why, one day when she was reading my palm, I noticed that her gown was drawn up a little on one side, and showed her petticoat beneath, with ruffles of Mechlin, real Mechlin on it. Some people say that she is a Spanish princess, or something of the kind—so eccentric that she tells fortunes just for the fun of it. Oh, Bobby, do, do get her."

"When shall we have this dinner?" asked Hayden, with apparent irrelevance.

Kitty thought quickly. "Give me ten days to decide upon things and have my orders carried out."

"Very good. Ten days. Let me see, that will be Tuesday of week after next. Do you think the rest will come?"

"Of course they will come. They would break any other engagement to meet Mademoiselle Mariposa."

"Then I will find out now if she will come, if you will allow me to use your telephone."

He was lucky enough to find Ydo at home; but when he informed her that he was giving a dinner for a few friends on Tuesday, ten days away, and that he earnestly desired her presence, she demurred.

"What are you doing this evening?" he asked.