“Is it really true?” the most timid came to ask.

“True, indeed!” replied Nino solemnly, and pointed to the pendulum; but he would allow no one to examine it at close quarters.

Just as though it had been done on purpose, the Pietranera observatory no longer signalled any disturbances since Golastretta had begun to amuse itself by frequent vibrations; and Pippo Corradi, suspecting the trick of his colleague, was gnawing his own heart out over all the false indications which were quietly being foisted in among the genuine ones of the official report, and making a mock of Science.

He, for his own part, did his work seriously and scrupulously, even leaving his dinner when the hour for observation came; and his reports might be called models of scientific accuracy. Ought he to denounce his colleague? to unmask him? He could not make up his mind. The latter, as bold as brass, went on making his village quake and tremble, as though it were nothing at all.

This time the proverb that “lies have short legs” did not hold good; for the lies in question reached Tacchini at Rome, and Father Denza at Moncalieri. Perhaps, even, they confused the calculations of those unfortunate scientists, who were very far from suspecting, in the remotest degree, the wickedness of Nino.

But one day, all of a sudden, the Golastretta pendulum awoke from its torpor, and began to move behind the magnifying-glass, although to the naked eye its motion was scarcely perceptible.

Nino gave a howl of joy. “At last! at last!”

To the first person who happened to come into the office he said, with a majestic sweep of the arm, “Look here!”

“What does it mean?”