“I did. I have it upstairs in my bag if you would care to examine it.”

“Oh,” said the Inspector, “I see. And thinking he had been followed to England he came to you to see if you could save him?”

Paul Harley nodded grimly.

“Why did he go to you in preference to the local police, the proper authorities?” demanded the Inspector.

“He was advised to do so by the Spanish ambassador, or so he informed me.”

“Is that so? Well, I suppose it had to be. Coming from foreign parts. I expect he didn’t know what our police are for.” He cleared his throat. “Very well, I understand now what you were doing here, Mr. Harley. The next thing is, what were you doing tonight, as I see that both you and Mr. Knox are still in evening dress?”

“We were keeping watch,” I replied.

Inspector Aylesbury turned to me ponderously, raising a fat hand. “One moment, Mr. Knox, one moment,” he protested. “The evidence of one witness at a time.”

“We were keeping watch,” said Harley, deliberately echoing my words.

“Why?”