CHAPTER XXVI

THE IVORY HAND

For close upon an hour Robert Cairn sat at his writing-table, endeavouring to puzzle out a solution to the mystery of Ferrara's motive. His reflections served only to confuse his mind.

A tangible clue lay upon the table before him—the silken cord. But it was a clue of such a nature that, whatever deductions an expert detective might have based upon it, Robert Cairn could base none. Dusk was not far off, and he knew that his nerves were not what they had been before those events which had led to his Egyptian journey. He was back in his own chamber—scene of one gruesome outrage in Ferrara's unholy campaign; for darkness is the ally of crime, and it had always been in the darkness that Ferrara's activities had most fearfully manifested themselves.

What was that?

Cairn ran to the window, and, leaning out, looked down into the court below. He could have sworn that a voice—a voice possessing a strange music, a husky music, wholly hateful—had called him by name. But at the moment the court was deserted, for it was already past the hour at which members of the legal fraternity desert their business premises to hasten homewards. Shadows were creeping under the quaint old archways; shadows were draping the ancient walls. And there was something in the aspect of the place which reminded him of a quadrangle at Oxford, across which, upon a certain fateful evening, he and another had watched the red light rising and falling in Antony Ferrara's rooms.

Clearly his imagination was playing him tricks; and against this he knew full well that he must guard himself. The light in his rooms was growing dim, but instinctively his gaze sought out and found the mysterious silken cord amid the litter on the table. He contemplated the telephone, but since he had left a message for his father, he knew that the latter would ring him up directly he returned.

Work, he thought, should be the likeliest antidote to the poisonous thoughts which oppressed his mind, and again he seated himself at the table and opened his notes before him. The silken rope lay close to his left hand, but he did not touch it. He was about to switch on the reading lamp, for it was now too dark to write, when his mind wandered off along another channel of reflection. He found himself picturing Myra as she had looked the last time that he had seen her.

She was seated in Mr. Saunderson's garden, still pale from her dreadful illness, but beautiful—more beautiful in the eyes of Robert Cairn than any other woman in the world. The breeze was blowing her rebellious curls across her eyes—eyes bright with a happiness which he loved to see.