Passionate and self-willed, he was shaken by a storm of murderous anger. That Pyne had planned this trick, with Rita Irvin’s consent, he did not doubt, and his passive dislike of the man became active hatred of the woman he dared not think. He had for long looked upon Sir Lucien in the light of a rival, and the irregularity of his own infatuation for another’s wife in no degree lessened his resentment. Again he pressed his ear to the door, and listened intently. Perhaps they were hiding within. Perhaps this charlatan, Kazmah, was an accomplice in the pay of Sir Lucien. Perhaps this was a secret place of rendezvous. To the manifest absurdity of such a conjecture he was blind in his anger. But that he was helpless, befooled, he recognized; and with a final muttered imprecation he turned and slowly descended the stair. A lingering hope was dispelled when, looking right and left along Bond Street, he failed to perceive the missing pair. The cabman glanced at him interrogatively. “I shall not require you,” said Gray, and gave the man half-a-crown. Busy with his poisonous conjectures, he remained all unaware of the presence of a furtive, stooping figure which lurked behind the railings of the arcade at this point linking old Bond Street to Albemarle Street. Nor had the stooping stranger any wish to attract Gray’s attention. Most of the shops in the narrow lane were already closed, although the florist’s at the corner remained open, but of the shadow which lay along the greater part of the arcade this alert watcher took every advantage. From the recess formed by a shop door he peered out at Gray, where the light of a street lamp fell upon him, studying his face, his movements, with unrelaxing vigilance. Gray, following some moments of indecision, strode off towards Piccadilly. The little man came out cautiously from his hiding-place and looked after him. Out of a dark porch, ten paces along Bond Street, appeared a burly figure to fall into step a few yards behind Gray. The little man licked his lips appreciatively and returned to the doorway below the premises of Kazmah. Reaching Piccadilly, Gray stood for a time on the corner, indifferent to the jostling of passers-by. Finally he crossed, walked along to the Prince’s Restaurant, and entered the lobby. He glanced at his wrist-watch. It registered the hour of seven-twenty-five. He cancelled his order for a table and was standing staring moodily towards the entrance when the doors swung open and a man entered who stepped straight up to him, hand extended, and: “Glad to see you, Gray,” he said. “What’s the trouble?” Quentin Gray stared as if incredulous at the speaker, and it was with an unmistakable note of welcome in his voice that he replied: “Seton! Seton Pasha!” The frown disappeared from Gray’s forehead, and he gripped the other’s hand in hearty greeting. But: “Stick to plain Seton!” said the new-comer, glancing rapidly about him. “Ottoman titles are not fashionable.”