And with that he bowed and took his leave.

"The devil!" exclaimed Master Georgio.

Throughout that day Master Georgio indulged in various vagaries, which tended to prove that his reason, like Roland's, was penetrating farther and farther into imaginary realms.

In the evening, just at bedtime, he summoned all the servants, all the jailers, all the guards.

"If," said he, "you learn that Benvenuto Cellini is intending to fly away, let him go, and notify me, nothing more; for I shall know where to go to capture him, even in the dark, since I am myself a veritable bat, while he, whatever he may say, is only a false bat."

The poor governor was quite mad; but as they hoped that a night's rest would have a soothing effect upon him, they decided to wait until morning before advising the Pope.

Moreover it was an abominable night, dark and rainy, and no one cared to go out in such weather; always excepting Benvenuto Cellini, who had selected that very night for his escape, in a spirit of contrariety doubtless.

And so, as soon as he heard the clock strike ten, and the footsteps indicating that the sentinel had been relieved, he fell on his knees and offered a fervent prayer, after which he set to work.

In the first place he removed the heads of the four nails, which alone held the iron plates in place. The last yielded to his efforts just at midnight.

He heard the steps of the sentinel going up to the platform; he stood with his ear glued to the door, without breathing, until the relieved sentinel came down, the steps died away in the distance, and silence reigned once more.