"Gracious God!" he exclaimed, while the cold sweat poured like rain-drops down his forehead, "the fire has caught the fulminating powder! But what meant that dreadful cry? Surely nothing of human life has suffered! The boy Hubert—but, no—he was at work at the further extremity of the building. But this is no time for vain, conjecture—let me learn the worst at once!"
And with these words he urged his affrighted steed to its best pace, and rode rapidly into the city.
All was consternation there: the tremendous noise had roused every inhabitant, and people were hurrying to and fro, some hastening toward the place from whence the sound had proceeded, others rushing wildly from it. It was but too evident that a dreadful catastrophe, worse even than Bacon dreaded, had happened. It was with difficulty he made his way through the crowd, and came upon the ruin which still blazed fiercely, appalling the stoutest of heart. There was a tumult of voices, but above the outcries of the affrighted monks, and of the scared multitude, rose the loud voice of the Friar, calling upon them to extinguish the flames. This appeal turned all eyes toward him, and then associating him with an evil, the cause of which they were unable to comprehend, the maledictions of the monks broke forth.
"Seize the accursed magician," they shouted; "he has made a fiery compact with the demon! Already one victim is sacrificed—our turn will come next! See, here are the mangled limbs of his pupil, Hubert de Dreux! The fiend has claimed his reward, and borne away his soul. Seize on the wicked sorcerer, and take him to a dungeon!"
Roger Bacon sate stupefied by the unexpected blow; he had no power, if he had possessed the will, to offer the slightest resistance to the fury of the enraged Franciscans, who, in the true spirit of ignorance, had ever hated him for his acquirements. With a deep sigh for the fate of the young man, whose imprudence he now saw had been the cause of this dreadful event, he yielded himself up to his enemies; they tore him from his palfrey, and with many a curse, and many a buffet, dragged him to the castle, and lodged him in one of its deepest dungeons.
The flames from the ruined cell died out of themselves; but those which the envy and dread of Bacon's genius had kindled, were never extinguished, but with his life.
In the long years of imprisonment which followed—the doom of the stake being averted only by powerful intercession with the Pope—Bacon had leisure to meditate on the value of all he had done to enlarge the understanding and extend the knowledge of his species. "The prelates and friars," he wrote in a letter which still remains, "have kept me starving in close prison, nor will they suffer any one to come to me, fearing lest my writings should come to any other than the Pope and themselves."
He reflected that of all living men he stood well-nigh alone in the consciousness that in the greatest of his inventions he had produced a discovery of incalculable value, but one for which on every account the time was not ripe.
"I will not die," he said, "without leaving to the world the evidence that the secret was known to me whose marvelous power future ages shall acknowledge. But not yet shall it be revealed. Generations must pass away and the minds of men become better able to endure the light of science, before they can profit by my discovery. Let him who already possesses knowledge, guess the truth these words convey."
And in place of the directions by which Hubert de Dreux had been guided, he altered the sentence as follows: