Father Brown had mounted ahead; for the woodland path grew smaller, steeper, and more twisted, till they felt as if they were ascending a winding staircase. The priest's voice came from above out of the darkness.
"There was one other little and enormous thing. When the general urged them to their chivalric charge he half drew his sword from the scabbard; and then, as if ashamed of such melodrama, thrust it back again. The sword again, you see."
A half-light broke through the network of boughs above them, flinging the ghost of a net about their feet; for they were mounting again to the faint luminosity of the naked night. Flambeau felt truth all round him as an atmosphere, but not as an idea. He answered with bewildered brain: "Well, what's the matter with the sword? Officers generally have swords, don't they?"
"They are not often mentioned in modern war," said the other dispassionately; "but in this affair one falls over the blessed sword everywhere."
"Well, what is there in that?" growled Flambeau; "it was a twopence coloured sort of incident; the old man's blade breaking in his last battle. Anyone might bet the papers would get hold of it, as they have. On all these tombs and things it's shown broken at the point. I hope you haven't dragged me through this Polar expedition merely because two men with an eye for a picture saw St. Clare's broken sword."
"No," cried Father Brown, with a sharp voice like a pistol shot; "but who saw his unbroken sword?"
"What do you mean?" cried the other, and stood still under the stars. They had come abruptly out of the grey gates of the wood.
"I say, who saw his unbroken sword?" repeated Father Brown obstinately. "Not the writer of the diary, anyhow; the general sheathed it in time."
Flambeau looked about him in the moonlight, as a man struck blind might look in the sun; and his friend went on, for the first time with eagerness:
"Flambeau," he cried, "I cannot prove it, even after hunting through the tombs. But I am sure of it. Let me add just one more tiny fact that tips the whole thing over. The colonel, by a strange chance, was one of the first struck by a bullet. He was struck long before the troops came to close quarters. But he saw St. Clare's sword broken. Why was it broken? How was it broken? My friend, it was broken before the battle."
"Oh!" said his friend, with a sort of forlorn jocularity; "and pray where is the other piece?"
"I can tell you," said the priest promptly. "In the northeast corner of the cemetery of the Protestant Cathedral at Belfast."
"Indeed?" inquired the other. "Have you looked for it?"
"I couldn't," replied Brown, with frank regret. "There's a great marble monument on top of it; a monument to the heroic Major Murray, who fell fighting gloriously at the famous Battle of the Black River."
Flambeau seemed suddenly galvanised into existence. "You mean," he cried hoarsely, "that General St. Clare hated Murray, and murdered him on the field of battle because—"
"You are still full of good and pure thoughts," said the other. "It was worse than that."
"Well," said the large man, "my stock of evil imagination is used up."
The priest seemed really doubtful where to begin, and at last he said again:
"Where would a wise man hide a leaf? In the forest."
The other did not answer.
"If there were no forest, he would make a forest. And if he wished to hide a dead leaf, he would make a dead forest."
There was still no reply, and the priest added still more mildly and quietly:
"And if a man had to hide a dead body, he would make a field of dead bodies to hide it in."
Flambeau began to stamp forward with an intolerance of delay in time or space; but Father Brown went on as if he were continuing the last sentence:
"Sir Arthur St. Clare, as I have already said, was a man who read his Bible. That was what was the matter with him. When will people understand that it is useless for a man to read his Bible unless he also reads everybody else's Bible? A printer reads a Bible for misprints. A Mormon reads his Bible, and finds polygamy; a Christian Scientist reads his, and finds we have no arms and legs. St. Clare was an old Anglo-Indian Protestant soldier. Now, just think what that might mean; and, for Heaven's sake, don't cant about it. It might mean a man physically formidable living under a tropic sun in an Oriental society, and soaking himself without sense or guidance in an Oriental Book. Of course, he read the Old Testament rather than the New. Of course, he found in the Old Testament anything that he wanted—lust, tyranny, treason. Oh, I dare say he was honest, as you call it. But what is the good of a man being honest in his worship of dishonesty?
"In each of the hot and secret countries to which the man went he kept a harem, he tortured witnesses, he amassed shameful gold; but certainly he would have said with steady eyes that he did it to the glory of the Lord. My own theology is sufficiently expressed by asking which Lord? Anyhow, there is this about such evil, that it opens door after door in hell, and always into smaller and smaller chambers. This is the real case against crime, that a man does not become wilder and wilder, but only meaner and meaner. St. Clare was soon suffocated by difficulties of bribery and blackmail; and needed more and more cash. And by the time of the Battle of the Black River he had fallen from world to world to that place which Dante makes the lowest floor of the universe."
"What do you mean?" asked his friend again.
"I mean that," retorted the cleric, and suddenly pointed at a puddle sealed with ice that shone in the moon. "Do you remember whom Dante put in the last circle of ice?"
"The traitors," said Flambeau, and shuddered. As he looked around at the inhuman landscape of trees, with taunting and almost obscene outlines, he could almost fancy he was Dante, and the priest with the rivulet of a voice was, indeed, a Virgil leading him through a land of eternal sins.
The voice went on: "Olivier, as you know, was quixotic, and would not permit a secret service and spies. The thing, however, was done, like many other things, behind his back. It was managed by my old friend Espado; he was the bright-clad fop, whose hook nose got him called the Vulture. Posing as a sort of philanthropist at the front, he felt his way through the English Army, and at last got his fingers on its one corrupt man—please God!—and that man at the top. St. Clare was in foul need of money, and mountains of it. The discredited family doctor was threatening those extraordinary exposures that afterwards began and were broken off; tales of monstrous and prehistoric things in Park Lane; things done by an English Evangelist that smelt like human sacrifice and hordes of slaves. Money was wanted, too, for his daughter's dowry; for to him the fame of wealth was as sweet as wealth itself. He snapped the last thread, whispered the word to Brazil, and wealth poured in from the enemies of England. But another man had talked to Espado the Vulture as well as he. Somehow the dark, grim young major from Ulster had guessed the hideous truth; and when they walked slowly together down that road towards the bridge Murray was telling the general that he must resign instantly, or be court-martialled and shot. The general temporised with him till they came to the fringe of tropic trees by the bridge; and there by the singing river and the sunlit palms (for I can see the picture) the general drew his sabre and plunged it through the body of the major."