"Well!" said Dawson, "and who was the visitor?"
"I do not know," answered Calder. "The one thing I do know is that when Durrance's servant went to call him at four o'clock for his journey, he found Durrance still sitting on the verandah outside his quarters, as though he still expected his visitor. The visitor had not come."
"And Durrance left no message?"
"No. I was up myself before he started. I thought that he was puzzled and worried. I thought, too, that he meant to tell me what was the matter. I still think that he had that in his mind, but that he could not decide. For even after he had taken his seat upon his saddle and his camel had risen from the ground, he turned and looked down towards me. But he thought better of it, or worse, as the case may be. At all events, he did not speak. He struck the camel on the flank with his stick, and rode slowly past the post-office and out into the desert, with his head sunk upon his breast. I wonder whether he rode into a trap. Who could this visitor have been whom he meets in the street of Tewfikieh, and who must come so secretly to Wadi Halfa? What can have been his business with Durrance? Important business, troublesome business—so much is evident. And he did not come to transact it. Was the whole thing a lure to which we have not the clue? Like Colonel Dawson, I am afraid."
There was a silence after he had finished, which Major Walters was the first to break. He offered no argument—he simply expressed again his unalterable cheerfulness.
"I don't think Durrance has got scuppered," said he, as he rose from his chair.
"I know what I shall do," said the colonel. "I shall send out a strong search party in the morning."
And the next morning, as they sat at breakfast on the verandah, he at once proceeded to describe the force which he meant to despatch. Major Walters, too, it seemed, in spite of his hopeful prophecies, had pondered during the night over Calder's story, and he leaned across the table to Calder.
"Did you never inquire whom Durrance talked with at Tewfikieh on that night?" he asked.
"I did, and there's a point that puzzles me," said Calder. He was sitting with his back to the Nile and his face towards the glass doors of the mess-room, and he spoke to Walters, who was directly opposite. "I could not find that he talked to more than one person, and that one person could not by any likelihood have been the visitor he expected. Durrance stopped in front of a café where some strolling musicians, who had somehow wandered up to Tewfikieh, were playing and singing for their night's lodging. One of them, a Greek I was told, came outside into the street and took his hat round. Durrance threw a sovereign into the hat, the man turned to thank him, and they talked for a little time together;" and as he came to this point he raised his head. A look of recognition came into his face. He laid his hands upon the table-edge, and leaned forward with his feet drawn back beneath his chair as though he was on the point of springing up. But he did not spring up. His look of recognition became one of bewilderment. He glanced round the table and saw that Colonel Dawson was helping himself to cocoa, while Major Walters's eyes were on his plate. There were other officers of the garrison present, but not one had remarked his movement and its sudden arrest. Calder leaned back, and staring curiously in front of him and over the major's shoulder, continued his story. "But I could never hear that Durrance spoke to any one else. He seemed, except that one knows to the contrary, merely to have strolled through the village and back again to Wadi Halfa."