With a scream of rage and pain, he fell back; and then I was upon him in earnest.

He yelled for mercy now and cried that he was not Uldak; that I had made a mistake, and begged me to let him go. Then the coward turned to flee, and I was forced to do that which I most disliked to do; but if I were to carry out my plan I could not let him live, and so I leaped close and ran my sword through his heart from behind.

Uldak lay dead upon his face.

As I drew my sword from his body, I looked quickly about me. No one was within sight. I turned the man over upon his back and with the point of my sword made a cross upon his breast above his heart.

Chapter 5 THE BRAIN

Rapas was waiting for me when I entered the eating-place. He looked very self-satisfied and contented.

"You are right on time," he said. "Did you find anything to amuse you in the night life of Zodanga?"

"Yes," I assured him. "I enjoyed myself immensely. And you?"

"I spent a most profitable evening. I made excellent connections; and, my dear Vandor, I did not forget you."

"How nice of you," I said.

"Yes, you shall have reason to remember this evening as long as you live," he exclaimed, and then he burst into laughter.

"You must tell me about it," I said.

"No, not now," he replied, "It must remain a secret for a time. You will know all about it soon enough, and now let us eat. It is my treat tonight. I shall pay for everything."

The miserable rat of a man seemed to have swelled with importance now that he felt himself almost a full-fledged member of Ur Jan's guild of assassins.

"Very well," I said, "this shall be your treat," for I thought it would add to my enjoyment of the joke to let the poor fool foot the bill, and to make it still more amusing I ordered the most expensive dishes that I could find.

When I had entered the eating-place, Rapas had already seated himself facing the entrance; and he was continually glancing at it. Whenever anyone entered, I could see the look of expectation on his face change to one of disappointment.

We spoke of various unimportant things as we ate; and as the meal progressed, I could not but note his growing impatience and concern.

"What is the matter, Rapas?" I inquired after a while. "You seem suddenly nervous. You are always watching the entrance. Are you expecting someone?"

He got himself in hand then, very quickly; but he cast a single searching glance at me through narrowed lids. "No, no," he said, "I was expecting no one; but I have enemies. It is always necessary for me to be watchful."

His explanation was plausible enough, though I knew of course that it was not the right one. I could have told him that he was watching for someone who would never come, but I did not.