The two men looked at one another and smiled. They were not pleasant smiles, and Frobisher's teeth bared in a sudden grin that was not good to see. He crossed to the table near which Lopez was seated, and began to play with a cheque-book.

"Artistic things, these," he said. "Observe the beauty of the watermark, the fine instinct of the oblong; note the contrast between the pale pink of the legend and the flaming red of the stamp. My Lopez, a cheque, properly verified, and engagingly autographed, is veritably a joyful thing."

"A study in itself," Lopez said without emotion. "What are you after, you rascal?"

"My Lopez, you are taking liberties. I am a baronet of old creation, whereas you are what you are."

"Arcades ambo. You sent for me, and I am here; my time is money. Once more, what are you driving at?"

"I'm puzzled," Frobisher replied, still ogling his cheque-book lovingly. "Frankly, I'm puzzled. If I were not so busy with the big things I'd soon solve the little ones. Are you ever puzzled, Lopez?"

"Occasionally," Lopez replied. "When people tell me the truth, for instance. There was one man who had everything to gain by lying to me, and he didn't do it. That was a tough job."

Frobisher did not appear to be listening. With a pen in his hand he wrote the words "Paul Lopez" on the top line of a cheque. The cosmopolitan's eyes flashed for a moment.

"Well, I am going to tell you the truth," Frobisher went on. "Such a course under the circumstances will save me a lot of trouble. Mind you, I am going to tell the absolute truth. You know all about the Shan of Koordstan, of course. He promised me certain things, and now he is trying to wriggle out of his bargain. At the same time, he wants to complete it. There is some obstacle in the way because I am prepared to pay him more money than any one else, and he wants all the cash he can get. Now, if it were worth my while, I could get to the bottom of this business very soon, but you don't want sprats on the hook that you have baited for a whale. You must find this out for me."

"And if I promise to find this out for you, what then?"