"This is a singular situation in which we find ourselves," I said, "and one that I'm bound to admit I don't appreciate."
Nayland Smith stretched his long legs, and lay back in his chair.
"The sudden illness of Sir Lionel is certainly very disturbing," he replied, "and had there been any possibility of returning to London to-night, I should certainly have availed myself of it, Petrie. I share your misgivings. We are intruders at a time like this."
He stared at me keenly, blowing a wreath of smoke from his lips, and then directing his attention to the cone of ash which crowned his cigar. I glanced, and not for the first time, toward the quaint old doorway which gave access to a certain corridor. Then—
"Apart from the feeling that we intrude," I continued slowly, "there is a certain sense of unrest."
"Yes," snapped Smith, sitting suddenly upright—"yes! You experience this? Good! You are happily sensitive to this type of impression, Petrie, and therefore quite as useful to me as a cat is useful to a physical investigator."
He laughed in his quick, breezy fashion.
"You will appreciate my meaning," he added; "therefore I offer no excuse for the analogy. Of course, the circumstances, as we know them, may be responsible for this consciousness of unrest. We are neither of us likely to forget the attempt upon the life of Sir Lionel Barton two years ago or more. Our attitude toward sudden illness is scarcely that of impartial observers."
"I suppose not," I admitted, glancing yet again at the still vacant doorway by the foot of the stairs, which now the twilight was draping in mysterious shadows.
Indeed, our position was a curious one. A welcome invitation from our old friend, Sir Lionel Barton, the world-famous explorer, had come at a time when a spell of repose, a glimpse of sea and awakening countryside, and a breath of fair, untainted air were very desirable. The position of Kâramaneh, who accompanied us, was sufficiently unconventional already, but the presence of Mrs. Oram, the dignified housekeeper, had rendered possible her visit to this bachelor establishment. In fact it was largely in the interests of the girl's health that we had accepted.