"Yes," Mrs. Daymond answered; "I was thinking of that."
Then came a mysterious gliding of the two gondolas, Indian-file, down dark, narrow canals, where were glimpses, through low passage-ways into dimly lighted squares. On one of the bridges, as they passed beneath it, a hollow footstep sounded, and as they looked back they could see a cloaked figure leaning upon the stone parapet. Now and then a chance gas-lamp cast upon the wall beside them the shadow of the gondolier's swaying figure, vanishing then in the black water like a stealthy suicide. Pauline looked round once or twice, involuntarily, to make sure that the man was still there, and once May said: "Nanni, could we get past if we were to meet any one?"
"Si, Signorina," the grave voice made answer; and Uncle Dan felt agreeably confirmed in his impression that Nanni was to be trusted.
Nearly two hours later, the girls were
