Can you understand?
He has grown nervous, restless, excitable, a thing of twitching limbs.
Oh, and that's not all.

I will tell you.

This morning it seemed to me that the color of his eyes had changed." Chayne stared at her.

"Sylvia!" he exclaimed.
"Oh, I have not lost my senses," she answered, and she resumed: "I only noticed that there was an alteration at first.

I did not see in what the alteration lay.