He tried to heave up the sack from the corner, but it was far too heavy, and he was obliged to bring back more than half of what it held by bucketfuls, before he was able to bring the rest, dragging it after him across the floor. It was finished at last, he had shaken out the sack carefully over the jar's mouth, and he had moved the sand-chest back to its original position. No one would have imagined that the broken glass had been removed and put back again. The box was safely hidden now.
He was utterly exhausted when he dropped into the big chair, after washing the dust and blood from his hands—for it had been impossible to do what he had done without getting a few scratches, though none of them could have been called a cut. He sat quite still and closed his eyes. The box was safe now. It was not to be imagined that any one should ever suspect where it was, and on that point he was well satisfied. His only possible cause of anxiety now might be that if anything should happen to him, the master would be in ignorance of what he had done. But he saw no reason to expect anything so serious and his mind was at rest about a matter which had much disturbed him ever since Giovanni's visit.
The plan which he had attributed to the latter was not, however, the one which suggested itself to the younger Beroviero's mind. It would have been easy to carry out, and was very simple, and for that very reason Giovanni did not think of it. Besides, in his estimation it would be better to act in such a way as to get rid of Zorzi for ever, if that were possible.
On the Saturday night after Zorzi had hidden the box in the jar, the workmen cleared away the litter in the main furnace rooms and the order was given to let the fires go out. Zorzi sent word to the night boys who tended the fire in the laboratory that they were to come as usual. They appeared punctually, and to his surprise made no objection to working, though he had expected that they would complain of the heat and allege that their fathers would not let them go on any longer. On Sunday, according to the old rule of the house, no work was done, and Zorzi kept up the fire himself, spending most of the long day in the garden. On Sunday night the boys came again and went to work without a word, and in the morning they left the usual supply of chopped billets piled up and ready for use. Zorzi had rested himself thoroughly and went back to his experiments on that Monday with fresh energy.
The very first test he took of the glass that had been fusing since Saturday night was successful beyond his highest expectations. He had grown reckless after having spoiled the original mixtures by adding the copper in the hope of getting more of the wonderful red, and carried away by the love of the art and by the certainty of ultimate success which every man of genius feels almost from boyhood, he had deliberately attempted to produce the white glass for which Beroviero was famous. He followed a theory of his own in doing so, for although he was tolerably sure of the nature of the ingredients, as was every workman in the house, neither he nor they knew anything of the proportions in which Beroviero mixed the substances, and every glass-maker knows by experience that those proportions constitute by far the most important element of success.
Zorzi had not poured out the specimen on the table as he had done when the glass was coloured; on the contrary he had taken some on the blow-pipe and had begun to work with it at once, for the three great requisites were transparency, ductility, and lightness. In a few minutes he had convinced himself that his glass possessed all these qualities in an even higher degree than the master's own, and that was immeasurably superior to anything which the latter's own sons or any other glass-maker could produce. Zorzi had taken very little at first, and he made of it a thin phial of graceful shape, turned the mouth outward, and dropped the little vessel into the bed of ashes. He would have set it in the annealing oven, but he wished to try the weight of it, and he let it cool. Taking it up when he could touch it safely, it felt in his hand like a thing of air. On the shelf was another nearly like it in size, which he had made long ago with Beroviero's glass. There were scales on the table; he laid one phial in each, and the old one was by far the heavier. He had to put a number of pennyweights into the scale with his own before the two were balanced.
His heart almost stood still, and he could not believe his good fortune. He took the sheet of rough paper on which he had written down the precise contents of the three crucibles, and he carefully went over the proportions of the ingredients in the one from which he had just taken his specimen. He made a strong effort of memory, trying to recall whether he had been careless and inexact in weighing any of the materials, but he knew that he had been most precise. He had also noted the hour at which he had put the mixture into the crucible on Saturday, and he now glanced at the sand-glass and made another note. But he did not lay the paper upon the table, where it had been lying for two days, kept in place by a little glass weight. It had become his most precious possession; what was written on it meant a fortune as soon as he could get a furnace to himself; it was his own, and not the master's; it was wealth, it might even be fame. Beroviero might call him to account for misusing the furnace, but that was no capital offence after all, and it was more than paid for by the single crucible of magnificent red glass. Zorzi was attempting to reproduce that too, for he had the master's notes of what the pot had contained, and it was almost ready to be tried; he even had the piece of copper carefully weighed to be equal in bulk with the ladle that had been melted. If he succeeded there also, that was a new secret for Beroviero, but the other was for himself.
All that morning he revelled in the delight of working with the new glass. A marvellous dish with upturned edge and ornamented foot was the next thing he made, and he placed it at once in the annealing oven. Then he made a tall drinking glass such as he had never made before, and then, in contrast, a tiny ampulla, so small that he could almost hide it in his hand, with its spout, yet decorated with all the perfection of a larger piece. He worked on, careless of the time, his genius all alive, the rest a distant dream.
He was putting the finishing touches to a beaker of a new shape when the door opened, and Giovanni entered the laboratory. Zorzi was seated on the working stool, the pontil in one hand, the 'porcello' in the other. He glanced at Giovanni absently and went on, for it was the last touch and the glass was cooling quickly.
"Still working, in this heat?" asked Giovanni, fanning himself with his cap as was his custom.