“But you had a great scheme in hand,” cried Pierre, hoping to save him by reviving his sense of duty. “It isn’t allowable for you to go off like this.”

Then he fervently strove to awaken his brother’s scientific pride. He spoke to him of his secret, of that great engine of warfare, which could destroy armies and reduce cities to dust, and which he had intended to offer to France, so that on emerging victorious from the approaching war, she might afterwards become the deliverer of the world. And it was this grand scheme that he had abandoned, preferring to employ his explosive in killing innocent people and overthrowing a church, which would be built afresh, whatever the cost, and become a sanctuary of martyrs!

Guillaume smiled. “I have not relinquished my scheme,” said he, “I have simply modified it. Did I not tell you of my doubts, my anxious perplexity? Ah! to believe that one holds the destiny of the world in one’s grasp, and to tremble and hesitate and wonder if the intelligence and wisdom, that are needful for things to take the one wise course, will be forthcoming! At sight of all the stains upon our great Paris, all the errors and transgressions which we lately witnessed, I shuddered. I asked myself if Paris were sufficiently calm and pure for one to entrust her with omnipotence. How terrible would be the disaster if such an invention as mine should fall into the hands of a demented nation, possibly a dictator, some man of conquest, who would simply employ it to terrorize other nations and reduce them to slavery.... Ah! no, I do not wish to perpetuate warfare, I wish to kill it.”

Then in a clear firm voice he explained his new plan, in which Pierre was surprised to find some of the ideas which General de Bozonnet had one day laid before him in a very different spirit. Warfare was on the road to extinction, threatened by its very excesses. In the old days of mercenaries, and afterwards with conscripts, the percentage of soldiers designated by chance, war had been a profession and a passion. But nowadays, when everybody is called upon to fight, none care to do so. By the logical force of things, the system of the whole nation in arms means the coming end of armies. How much longer will the nations remain on a footing of deadly peace, bowed down by ever increasing “estimates,” spending millions and millions on holding one another in respect? Ah! how great the deliverance, what a cry of relief would go up on the day when some formidable engine, capable of destroying armies and sweeping cities away, should render war an impossibility and constrain every people to disarm! Warfare would be dead, killed in her own turn, she who has killed so many. This was Guillaume’s dream, and he grew quite enthusiastic, so strong was his conviction that he would presently bring it to pass.

“Everything is settled,” said he; “if I am about to die and disappear, it is in order that my idea may triumph.... You have lately seen me spend whole afternoons alone with Mere-Grand. Well, we were completing the classification of the documents and making our final arrangements. She has my orders, and will execute them even at the risk of her life, for none has a braver, loftier soul.... As soon as I am dead, buried beneath these stones, as soon as she has heard the explosion shake Paris and proclaim the advent of the new era, she will forward a set of all the documents I have confided to her—the formula of my explosive, the drawings of the bomb and gun—to each of the great powers of the world. In this wise I shall bestow on all the nations the terrible gift of destruction and omnipotence which, at first, I wished to bestow on France alone; and I do this in order that the nations, being one and all armed with the thunderbolt, may at once disarm, for fear of being annihilated, when seeking to annihilate others.”

Pierre listened to him, gaping, amazed at this extraordinary idea, in which childishness was blended with genius. “Well,” said he, “if you give your secret to all the nations, why should you blow up this church, and die yourself?”

“Why! In order that I may be believed!” cried Guillaume with extraordinary force of utterance. Then he added, “The edifice must lie on the ground, and I must be under it. If the experiment is not made, if universal horror does not attest and proclaim the amazing destructive power of my explosive, people will consider me a mere schemer, a visionary!... A lot of dead, a lot of blood, that is what is needed in order that blood may for ever cease to flow!” Then, with a broad sweep of his arm, he again declared that his action was necessary. “Besides,” he said, “Salvat left me the legacy of carrying out this deed of justice. If I have given it greater scope and significance, utilising it as a means of hastening the end of war, this is because I happen to be a man of intellect. It would have been better possibly if my mind had been a simple one, and if I had merely acted like some volcano which changes the soil, leaving life the task of renewing humanity.”

Much of the candle had now burnt away, and Guillaume at last rose from the block of stone. He had again consulted his watch, and found that he had ten minutes left him. The little current of air created by his gestures made the light flicker, while all around him the darkness seemed to grow denser. And near at hand ever lay the threatening open mine which a spark might at any moment fire.

“It is nearly time,” said Guillaume. “Come, brother, kiss me and go away. You know how much I love you, what ardent affection for you has been awakened in my old heart. So love me in like fashion, and find love enough to let me die as I want to die, in carrying out my duty. Kiss me, kiss me, and go away without turning your head.”

His deep affection for Pierre made his voice tremble, but he struggled on, forced back his tears, and ended by conquering himself. It was as if he were no longer of the world, no longer one of mankind.