"You must come back with as to my apartment," said Malipieri, who had been considering the matter, "You must stay there a couple of days, without going out. I will pay you for your time, and give you a handsome present, and plenty to eat and drink. After that you will be free to go where you please and say what you like, for the secret will be out."

"Thank you," answered Toto without enthusiasm. "Are you going to tell the government about the treasure?"

"The Senator will certainly inform the government, which has a right to buy it."

To this Toto said nothing, but he lifted his legs out of the hole and stood up, ready to go. Malipieri and Masin took up their lanterns.

CHAPTER XI

Masin led the way back, Toto followed and Malipieri went last, so that the mason was between his two captors. They did not quite trust him, and Masin was careful not to walk too fast where the way was so familiar to him, while Malipieri was equally careful not to lag behind. In this order they reached the mouth of the overflow shaft, covered with the loaded boards. Masin bent down and examined them, for he wished to convince himself that the stones had been moved since he had himself placed them there. A glance showed that this was the case, and he was about to go on, when he bent down again suddenly and listened, holding up his hand.

"There is water," he said, and began to lift off the stones, one by one.

Toto helped him quickly. There were only three or four, and they were not heavy. When the mouth of the shaft was uncovered all three knelt down and listened, instinctively lowering their lanterns into the blackness below. The shaft was not wider than a good-sized old-fashioned chimney, like those in Roman palaces, up and down which sweeps can just manage to climb.

The three men listened, and distinctly heard the steady falling of a small stream of water upon the stones at the bottom.

"It is raining," Toto said confidently, but he was evidently as much surprised by the sound as the others. "There must be some communication with the gutters in the courtyard," he added.