"Nobody could possibly tell that you have not been used to this life always," Angela said. "There have been jealous eyes round you to-night, but they found no flaw."

"I had no intention of them finding a flaw," Mrs. Benstein said coolly. "I have intuition and observation. And yet, till this very night, I have never sat and chatted with a lady before. I like you, Miss Lyne, and I would do anything for you. I like your kind face and those thoughtful eyes."

Angela was glad to hear it. The confession made her task all the easier.

"I am going to ask you to help me," she said. "I felt sure from the first that I could rely upon you. May I not be personal just for a little longer? You say your plumes are borrowed ones. Have you any idea of the identity of the ruby you are wearing on your forehead?"

"Not the least. My husband never mentions his clients by name—or, at least, very seldom. I took a fancy to this stone as a kind of climax to my costume, and with great reluctance my husband let me have it. Your eyes are telling me strange things, Miss Lyne."

"My tongue is going to tell you stranger," Angela whispered. "To think that you should be ignorant of the fact that you are wearing the sacred Blue Stone of Ghan."

"The Shan of Koordstan's Royal gem!" Mrs. Benstein exclaimed. "Oh, I know all about that. There is very little underground political history that I don't know. Koordstan and the Cardinal Moth and the—the rest of it. Our host to-night would give me something for the stone."

"Our host of to-night means to have it," Angela said under her breath.

"I see, I see. What an intellect the man has! It was he who persuaded me to come as Queen of the Rubies. For his own ends he got me invited here. He felt pretty sure that my husband would let me have the Blue Stone to wear. I am in danger."

"I don't think you are exactly in danger," Angela said.