The notion of writing a note and slipping it through the letter-box came to her. But she remembered that there was no letter-box. Then, such a course might be dangerous.

She looked gratefully towards the beam of light from the cab lamps. The solitude was getting on her nerves. Yes, she determined, she would write a note, and put it under the door. She need not sign it.

With that determination, she returned to where the taxi-man waited.

"Find it all right, miss?"

"Yes, but there's no one at home. I want to write a note and I should like you to go and slip it under the door for me. It is so lonely there, it has made me feel quite nervous. I can mind the cab!"

The man smiled and touched his cap. Taxi-men are possessed of intuitions; and this one knew perfectly well that he had a good fare and one that would pay him well enough for his trouble.

"Certainly, miss, with pleasure."

"Have you a piece of paper and a pencil?"

The man tore a leaf from a notebook and handed Zoe a pencil. Using the book as a pad, she, by the light of the near-side lamp, wrote:

"Your meeting at The Cedars known to Mr. Alden. Don't go."