Eagerly she bent forward.

"But if I can find him?"

That made me think, and I hesitated before speaking again.

"Say what you came to say," I replied slowly. "You must know that I distrust you. Indeed, my plain duty is to detain you. But I will listen to anything you may care to tell me, particularly if it enables me to trap Hassan of Aleppo."

"Very well," she said, and rested her elbows upon the table before her. "I have come to you in desperation. I can help you to find the man who murdered Professor Deeping, but in return I want you to help me!"

I watched her closely. She was very plainly, almost poorly, dressed. Her face was pale and there were dark marks around her eyes. This but served to render their strange beauty more startling; yet I could see that my visitor was in real trouble. The situation was an odd one.

"You are possibly about to ask me," I suggested, "to assist Earl Dexter to escape the police?"

She shook her head. Her voice trembled as she replied—

"That would not have induced me to run the risk of coming here. I came because I wanted to find a man who was brave enough to help me. We have no friends in London, and so it became a question of terms. I can repay you by helping you to trace Hassan."

"What is it, then, that Dexter asks me to do?"