Dion made a movement as if to pull away his hand, but Mrs. Clarke retained it. How was that? He scarcely knew; in fact he did not know. She did not seem to be doing anything definite to keep him, did not squeeze or grip his hand, or cling to it; but his hand remained in hers nevertheless.

“There,” she said, letting his hand go. “That is how Stamboul holds. Do you understand?”

Mrs. Chetwinde’s vague eyes had been on them during this little episode. Dion had had time to see that, and to think, “Now, at such a time, no one but an absolutely innocent woman would do in public what Mrs. Clarke is doing to me.” Mrs. Chetwinde, he felt sure, full of all worldly knowledge, must be thinking the very same thing.

“Yes,” he said. “I think I do. But I wonder whether it could hold me like that.”

“I know it could.”

“May I ask how you know?”

“Why not? Simply by my observation of you.”

Dion remembered the swift grave look of consideration she had given to him as he came into the room. Something almost combative rose up in him, and he entered into an argument with her, in the course of which he was carried away into the revelation of his mental comparison between Constantinople and Greece, a comparison into which entered a moral significance. He even spoke of the Christian significance of the Hermes of Olympia. Mrs. Clarke listened to him with a very still, and apparently a very deep, attention.

“I’ve been to Greece,” she said simply, when he had finished.

“You didn’t feel at all as I did, as I do?”