"Could you arrange that I join you?"
"I could, but you can see the danger for yourself?"
"It is extraordinarily mysterious."
"Mr. Cavanagh, it's uncanny!" said Bristol. "I can understand that one of these Hashishin could easily have got up behind the man on duty out in the open. I know, and so do you, that they're past masters of that kind of thing; but unless they possess the power to render themselves invisible, it's not evident how they can have got behind West whilst he sat at the table, with Marden actually watching him!"
"We must lay a trap for them to-night."
"Rely upon me to do so. My only fear is that they may anticipate it and change their tactics. Hassan of Aleppo apparently knows as much of our plans as we do ourselves."
Inspector Bristol, though a man of considerable culture, clearly was infected with a species of supernatural dread.
Chapter 8
THE VIOLET EYES AGAIN
At four o'clock in the afternoon I had heard nothing further from Bristol, but I did not doubt that he would advise me of his arrangements in good time. I sought by hard work to forget for a time the extraordinary business of the stolen slipper; but it persistently intruded upon my mind. Particularly, my thoughts turned to the night of Professor Deeping's murder, and to the bewitchingly pretty woman who had warned me of the impending tragedy. She had bound me to secrecy — a secrecy which had proved irksome, for it had since appeared to me that she must have been an accomplice of Hassan of Aleppo. At the time I had been at a loss to define her peculiar accent, now it seemed evidently enough to have been Oriental.