In ten minutes the servant returned, looking rather scared. "Eminenza," he said, "the gentleman must have left without coming upstairs. It is impossible to go down into the vaults—they are full of water."

The Cardinal seemed disappointed. "That is unfortunate," he said at last, "but you need not be alarmed, my good Domenico. You know there is nothing there to be injured, the foundations are solid, and, thank Heaven, the statue cannot swim away. The Professor was right to leave at once—I hope he did not get a chill. Yes, you may bring my soup now, and then I will sleep a little." As Domenico retired, his master shook his head over his own weakness. "Paolo mio," he told himself, "you are a very imperfect kind of creature. You are really disappointed because you have been cheated of hearing all Bianchi had to say about the discovery. What children we all are—clamoring for our playfellows and turning sulky when we are deprived of them."

The vaults of Palazzo Cestaldini were much older than the dwelling itself, being the indestructible remains of an Imperial mausoleum which above ground had been partially overthrown in the course of centuries of fighting, and then unscrupulously utilized as material for the new palace. The vaults, deep and wide, ran the whole length of the frontage, and were dimly lighted by heavily grated windows some three feet above the level of the outer street. From within the space had the appearance of a subterranean church with windows set high up in the walls; from without, the few who were curious enough to look down through the bars could see only depths of darkness with here and there a corner of worn masonry catching the light. From the ground, thirty feet below the windows, there rose on the street side a series of shallow steps, like tiers in an amphitheater; these ran the whole length of the wall and were surmounted by a narrow platform from which it was possible to look out on the upper world. In truth the crypt had been adapted by one of Paolo Cestaldini's ancestors for spectacular purposes, the adjacent river, with its many conduits, providing all that was necessary for mimic aquatic shows. Later, in more troubled times, it had sheltered great numbers of fighting men, and the barred windows had been crowded with rough faces and picturesque costumes, and had served as loopholes and defenses in many a joyful riot. In these days the vaulted roofs were gray with cobwebs and dark with moisture. In one distant corner lay a pile of rococo plaster figures, used long ago for some carnival pageant and then flung aside, legs and arms interlaced and broken, to crumble into a gruesome resemblance to blanched corpses deprived of burial.

These melancholy surroundings struck chill on the lawyer's humor as he descended the stairs and peered round for the Professor. Ah, there he was, down on his knees digging madly at a mound of earth; one of his workmen had left him; the other was holding a lantern for him with evident impatience to be gone. Water was trickling and lapping somewhere, and everything underfoot was moist and slippery, but the Professor seemed unconscious of all but his quest. He stood up suddenly, one hand to his aching back, the other raised in triumph. "The head!" he shouted. "I can feel it through the mold. Nunc Dimittis!" And he went down on his knees again and began to remove the earth with extreme care, his face streaming with perspiration, his spectacles two shifting blots of light in the beams of the lantern.

Suddenly this was set down with a clang and the workman flew past De Sanctis towards the exit. "Come away!" he cried, pointing at the same time to the stairs, down which a thin, continuous sheet of water was flowing. "The river is out at last. There will be a sea here in half-an-hour."

"Rubbish," replied De Sanctis, "that is only the rain." And he came stealthily to Bianchi's side and, laying a heavy hand on his shoulder, bent down and said sternly, "Signor Professore, what have you done with Giannella Brockmann's money?"

The Professor leaped to his feet with a scream and his pick fell from his hand. He stared in the lawyer's face, his own sickly with fear. In the scant up-thrown rays of the lantern it was impossible to distinguish more than a pair of gleaming black eyes and an accusing scowl; the rest was dreadful shadow.

But ere another word had been spoken a ripple of water broke round De Sanctis's feet. "Diamini, but he was right, that man!" he exclaimed; and in an instant he too had dashed away towards the stairs.

In that instant Bianchi had recognized him and breathed again. It was only De Sanctis, after all; an inconvenient, intrusive person to whom unimportant matters could easily be explained some other time. Meanwhile he must hasten to uncover, and feast his eyes on, the marble head which he was certain lay close to his hand; he must carry it up to the Cardinal himself, if it were not too heavy. What a triumph that would be. Ah, gently—there showed a gleam of whitish surface. Hands now, not to injure the precious thing. Doubled over, down on his knees, he worked like a demon, with blackened fingers and earth-choked nails, till at last it lay revealed, a calm immortal countenance gazing up at him with eyes that seemed to have been seeing in the grave; full, closed lips smiling as if with Olympic scorn at the hopes and fears of perishable man. Some under-ripple of life seemed to be pulsing over the broad brow, the divinely moulded cheeks and chin. Bianchi sank back on his knees, his hands clasped, trembling with unbearable joy.

"Greek, Greek," he whispered, as the saints have whispered prayers in ecstatic trances, "purest Greek. There were but five or six in the whole world—I have found one more. Dio mio, Dio mio, let me not die of happiness."