“You showed him into the study? All right, then, we will go there,” said the Abbe to the servant. “Light a lamp and take it into my room, and get my bed ready so that my brother may go to bed at once.”

While Sophie, without a word or sign of surprise, was obeying these instructions, the brothers went into their father’s former laboratory, of which the priest had now made a spacious study. And it was with a cry of joyous astonishment that the savant greeted them on seeing them enter the room side by side, the one supporting the other. “What, together!” he exclaimed. “Ah! my dear children, you could not have caused me greater pleasure! I who have so often deplored your painful misunderstanding.”

Bertheroy was a tall and lean septuagenarian, with angular features. His yellow skin clung like parchment to the projecting bones of his cheeks and jaw. Moreover, there was nothing imposing about him; he looked like some old shop-keeping herbalist. At the same time he had a fine, broad, smooth brow, and his eyes still glittered brightly beneath his tangled hair.

“What, have you injured yourself, Guillaume?” he continued, as soon as he saw the bandaged hand.

Pierre remained silent, so as to let his brother tell the story as he chose. Guillaume had realised that he must confess the truth, but in simple fashion, without detailing the circumstances. “Yes, in an explosion,” he answered, “and I really think that I have my wrist broken.”

At this, Bertheroy, whose glance was fixed upon him, noticed that his moustaches were burnt, and that there was an expression of bewildered stupor, such as follows a catastrophe, in his eyes. Forthwith the savant became grave and circumspect; and, without seeking to compel confidence by any questions, he simply said: “Indeed! an explosion! Will you let me see the injury? You know that before letting chemistry ensnare me I studied medicine, and am still somewhat of a surgeon.”

On hearing these words Pierre could not restrain a heart-cry: “Yes, yes, master! Look at the injury—I was very anxious, and to find you here is unhoped-for good fortune!”

The savant glanced at him, and divined that the hidden circumstances of the accident must be serious. And then, as Guillaume, smiling, though paling with weakness, consented to the suggestion, Bertheroy retorted that before anything else he must be put to bed. The servant just then returned to say the bed was ready, and so they all went into the adjoining room, where the injured man was soon undressed and helped between the sheets.

“Light me, Pierre,” said Bertheroy, “take the lamp; and let Sophie give me a basin full of water and some cloths.” Then, having gently washed the wound, he resumed: “The devil! The wrist isn’t broken, but it’s a nasty injury. I am afraid there must be a lesion of the bone. Some nails passed through the flesh, did they not?”

Receiving no reply, he relapsed into silence. But his surprise was increasing, and he closely examined the hand, which the flame of the explosion had scorched, and even sniffed the shirt cuff as if seeking to understand the affair better. He evidently recognised the effects of one of those new explosives which he himself had studied, almost created. In the present case, however, he must have been puzzled, for there were characteristic signs and traces the significance of which escaped him.