Suddenly, as she spoke, a broad beam of white light swept the long line of the Riva, and leapt to the point of the campanile, striking the golden angel into instantaneous brilliancy.

"What's that?" cried Pauline, startled at the suddenness of the apparition.

"It's a search-light," May answered. "See! It comes from the man-of-war over by Sant' Elisabetta. There! Look there!"

The light had dropped from the campanile, and now it shone full upon the masts and rigging of an East Indiaman lying off San Giorgio Maggiore. Each rope and spar stood out in the intense white light, distinct as if cased in ice.

"La luce elettrica," Vittorio observed, unable to suppress his pride in this new sensation furnished for the delectation of his Signorinas.

"Pauline," said May, with grave emphasis; "Nanni knew me."

"You are sure?"

"Perfectly. I saw it in his face,—and, besides, that is all he could have meant by his message. You didn't hear that, did you?"

"No; and he left you a message?"

"Yes; when we landed at Quattro Fontane this morning, and found Mr. Daymond there—did you notice that he seemed to have something to say to me?"