Nobody knew quite what had happened, but Lady Allendale gasped the word "Murder!" and pointed to the open door of the private room. In jumped two of the policemen, while the third tried to restore order in the restaurant. A glance under the table in the little dining-room showed that no corpse lay hidden there, but the lovely lady's persistence put the idea of a secret entrance into their heads. One of them thumped with his fist on the picture of the Chinese hunter. The hollow sound suggested a space behind. An experienced hand passed over the bamboo frame found a spring, and the panel slid back. Somehow the cry of "Murder!" started by Irene flew from mouth to mouth. More policemen appeared, and Europeans who had been peacefully dining in the restaurant reinforced the courageous pair who had sprung through the opening behind the picture. So the rescue-party reached us in the nick of time, policemen's lanterns lighting up the darkness, revealing stealthy flitting forms that would escape at any price, and a mass of men struggling under and above a pile of mattresses.

My first thought (after I had seen that Don was safe) rushed to Rameses. But the tall Chinaman with the long dark eyes was not among the prisoners. That night (the police gleefully informed me later) Doctor Rameses was engaged in giving a lecture at his own house, and could not possibly have been in Chinatown. As usual, he had known how to save himself; and it was only long after that I learned the remarkable way in which he invariably established an alibi.

My hope for the reconciliation of Don and Irene was fulfilled even before the overwhelming proof of his truth was obtained by finding the tobacco-pouch intact, still hidden inside the seat of the ancient taxi whose number Don had never forgotten. The man who had driven it the night of the attack had been discharged, and could not be found. Hanson, too, contrived to elude the vigilance of the police, and Pauline passionately denied all knowledge of him. She was watched when Lady Allendale sent her away, but returned quietly to Europe, while Irene remained in New York to help nurse Donald back to health. With Hanson and his accomplice of the taxi missing, and the Master Mind past pursuit, it was impossible to clear up the mystery of the corpse found floating in the East River. But after all, that mattered only to the police, now that Captain Sir Donald Allendale was alive and safe, and happier than he had been for years.

The day that Irene and he made up their differences, she sent for me. "You won't tell Don that I said I hated him and threw his picture on the floor, will you?" she asked me piteously.

"Of course not!" I assured her.

"Ah, if I could atone!" she sighed.

"You have atoned. You saved our lives, and——"

"Oh, but you don't know all. If you did, you'd loathe me."

"I can think of nothing which would make me loath you, Lady Allendale."

"I—made Miss Odell believe—that—that—I can't tell you what! But—never mind. I've written to her now. I've confessed that it was a lie. If you wouldn't press me with questions, but just wait to hear from her, you'd be an angel, Lord John."