They walked down the pier, and got on the boat a minute before it started. They did not pass through to the other end, but, leaning against the side, kept their eyes fixed on the city they were about to leave. They had not long to wait. The signal was heard, and the boat started leisurely from the pier. It was but ten feet distant, when the attention of Paul and Phil was drawn to a person running down the drop in great haste. He evidently wanted to catch the boat, but was too late.

Phil clutched at Paul’s arm, and pointed to him in evident excitement.

“It is Pietro,” he said.

At that moment Pietro, standing on the brink, caught sight of the boy he was pursuing, looking back at him from the deck of the ferry-boat. A look of exultation and disappointment swept over his face as he saw Phil, but realized that he was out of his reach. He had a hand-organ with him, and this had doubtless encumbered him, and prevented his running as fast as he might otherwise.

“So that is Pietro, is it?” said Paul, regarding him attentively in order to fix his face in his memory.

“Yes, Paolo,” said Phil, his eyes fixed nervously upon his pursuer, who maintained his place, and was watching him with equal attention.

“You are not frightened, Phil, are you?”

Phil admitted that he was.

“He will come over in the next boat,” he said.

“But he will not know where you are.”