The cup was yet at my lips when I chanced to look into the mirror that faced my table. Of course it reflected the part of the shop that was behind me, including the cashier’s desk; at which the owner of the basket now stood paying for her refreshment. Between her and me was a gas chandelier which cast its light on my back but full on her face; and her veil notwithstanding, I could see that she was looking at me steadily; was, in fact, watching me intently and with a very curious expression⁠—an expression of expectancy mingled with alarm. But this was not all. As I returned her intent look⁠—which I could do unobserved, since my face, reflected in the mirror, was in deep shadow⁠—I suddenly perceived that that steady gaze engaged her right eye only; the other eye was looking sharply towards her left shoulder. In short, she had a divergent squint of the left eye.