"I didn't come here to offer you a cheque," he said, "because it occurred to me you might refuse it. But I suppose you have no objection to banknotes."

Fowler was taken aback. The grin died away from his cunning features.

"Oh, certainly," he muttered, "certainly."

"Then produce the security and let us have done with it."

Fowler arose reluctantly to his feet and rummaged among a mass of papers in the safe. But the security was not forthcoming, which was exactly what Wilfrid had foreseen. With some show of disappointment Fowler returned to his desk muttering that he had left the security at home. Wilfrid gravely restored the bundle of papers to his pocket. He was not displeased at having forced the money-lender to show his hand. His suspicions had become certainties. Cotter had come down on purpose to take the security away. He rose carelessly from his seat.

"Very well," he said, "it doesn't in the least matter, but you must understand I can't call again. You know my address in Oldborough. I shall be there to-morrow morning, and if you send a representative to meet me I shall be prepared to pay you off. I don't think I need detain you longer."

With a curt nod Wilfrid left the office and made his way to Uzali's flat. He was informed that the Malay was in bed, but had left instructions that if Dr. Mercer called he was to be shown up at once. He found Uzali propped up by the bedclothes and looking not much the worse for his adventure.

"Oh, I shall be right enough to-morrow," he said cheerfully. "It is very unfortunate that I should have got into trouble last night. I daresay you wonder what it is all about?"

"My dear sir, I am consumed with curiosity," Wilfrid said. "And when you have told me all your adventures I will tell you mine, which were thrilling enough in all conscience."

"That is a bargain," Uzali smiled. "But there is one thing you must tell me first. Is our friend Samuel Flower still alive? Did anything happen to him last night?"