"Is she young and dark and rather nice to look at?" I asked.

Gertie nodded. "That's 'er. She wouldn't give no nime, but that's 'er right enough."

I didn't wait to ask any more questions, but putting down my hat on the hall table, I walked up to the sitting-room and tapped lightly on the door.

"Come in," called out a voice.

I turned the handle, and the next moment I was face to face with
Sonia.

CHAPTER XIV

A SUMMONS FROM DR. McMURTRIE

She had risen from the sofa as I entered and was standing in the centre of the room. The neatly cut, close-fitting dress that she was wearing suited her dark beauty to perfection and showed off the lines of her lithe, slender figure. She gave me a curious momentary impression of some sort of graceful wild animal.

"Ah!" she exclaimed softly. "I am glad you weren't late. I have to go away quite soon."

I took the hand she held out to me. "My dear Sonia," I said, "why didn't you let me know that you were going to be the visitor?"