"Why, the Seer," he replied, still staring at it ruefully. "I don't mind the five thou., but to think the fellow should have gammoned the pair of us like that—ignominious, I call it!"

"How do you know it's the Seer?" I asked.

"Look at the green ink," he answered. "Besides, I recollect the very shape of the last flourish. I flourished a bit like that in the excitement of the moment, which I don't always do with my regular signature."

"He's done us," I answered, recognising it. "But how the dickens did he manage to transfer it to the cheque? This looks like your own handwriting, Charles, not a clever forgery."

"It is," he said. "I admit it—I can't deny it. Only fancy his bamboozling me when I was most on my guard! I wasn't to be taken in by any of his silly occult tricks and catch-words; but it never occurred to me he was going to victimise me financially in this way. I expected attempts at a loan or an extortion; but to collar my signature to a blank cheque—atrocious!"

"How did he manage it?" I asked.

"I haven't the faintest conception. I only know those are the words I wrote. I could swear to them anywhere."

"Then you can't protest the cheque?"

"Unfortunately, no; it's my own true signature."

We went that afternoon without delay to see the Chief Commissary of Police at the office. He was a gentlemanly Frenchman, much less formal and red-tapey than usual, and he spoke excellent English with an American accent, having acted, in fact, as a detective in New York for about ten years in his early manhood.