"What do you mean?" demanded the London officer.
"I mean," answered the little priest, and his voice seemed to rise slightly in the roar of the gale. "I mean that the great devil of the universe may be sitting on the top tower of this castle at this moment, as big as a hundred elephants, and roaring like the Apocalypse. There is black magic somewhere at the bottom of this."
"Black magic," repeated Flambeau in a low voice, for he was too enlightened a man not to know of such things; "but what can these other things mean?"
"Oh, something damnable, I suppose," replied Brown impatiently. "How should I know? How can I guess all their mazes down below? Perhaps you can make a torture out of snuff and bamboo. Perhaps lunatics lust after wax and steel filings. Perhaps there is a maddening drug made of lead pencils! Our shortest cut to the mystery is up the hill to the grave."
His comrades hardly knew that they had obeyed and followed him till a blast of the night wind nearly flung them on their faces in the garden. Nevertheless they had obeyed him like automata; for Craven found a hatchet in his hand, and the warrant in his pocket; Flambeau was carrying the heavy spade of the strange gardener; Father Brown was carrying the little gilt book from which had been torn the name of God.
The path up the hill to the churchyard was crooked but short; only under that stress of wind it seemed laborious and long. Far as the eye could see, farther and farther as they mounted the slope, were seas beyond seas of pines, now all aslope one way under the wind. And that universal gesture seemed as vain as it was vast, as vain as if that wind were whistling about some unpeopled and purposeless planet. Through all that infinite growth of grey-blue forests sang, shrill and high, that ancient sorrow that is in the heart of all heathen things. One could fancy that the voices from the under world of unfathomable foliage were cries of the lost and wandering pagan gods: gods who had gone roaming in that irrational forest, and who will never find their way back to heaven.
"You see," said Father Brown in low but easy tone, "Scotch people before Scotland existed were a curious lot. In fact, they're a curious lot still. But in the prehistoric times I fancy they really worshipped demons. That," he added genially, "is why they jumped at the Puritan theology."
"My friend," said Flambeau, turning in a kind of fury, "what does all that snuff mean?"
"My friend," replied Brown, with equal seriousness, "there is one mark of all genuine religions: materialism. Now, devil-worship is a perfectly genuine religion."
They had come up on the grassy scalp of the hill, one of the few bald spots that stood clear of the crashing and roaring pine forest. A mean enclosure, partly timber and partly wire, rattled in the tempest to tell them the border of the graveyard. But by the time Inspector Craven had come to the corner of the grave, and Flambeau had planted his spade point downwards and leaned on it, they were both almost as shaken as the shaky wood and wire. At the foot of the grave grew great tall thistles, grey and silver in their decay. Once or twice, when a ball of thistledown broke under the breeze and flew past him, Craven jumped slightly as if it had been an arrow.
Flambeau drove the blade of his spade through the whistling grass into the wet clay below. Then he seemed to stop and lean on it as on a staff.
"Go on," said the priest very gently. "We are only trying to find the truth. What are you afraid of?"
"I am afraid of finding it," said Flambeau.
The London detective spoke suddenly in a high crowing voice that was meant to be conversational and cheery. "I wonder why he really did hide himself like that. Something nasty, I suppose; was he a leper?"
"Something worse than that," said Flambeau.
"And what do you imagine," asked the other, "would be worse than a leper?"
"I don't imagine it," said Flambeau.
He dug for some dreadful minutes in silence, and then said in a choked voice, "I'm afraid of his not being the right shape."
"Nor was that piece of paper, you know," said Father Brown quietly, "and we survived even that piece of paper."
Flambeau dug on with a blind energy. But the tempest had shouldered away the choking grey clouds that clung to the hills like smoke and revealed grey fields of faint starlight before he cleared the shape of a rude timber coffin, and somehow tipped it up upon the turf. Craven stepped forward with his axe; a thistle-top touched him, and he flinched. Then he took a firmer stride, and hacked and wrenched with an energy like Flambeau's till the lid was torn off, and all that was there lay glimmering in the grey starlight.
"Bones," said Craven; and then he added, "but it is a man," as if that were something unexpected.
"Is he," asked Flambeau in a voice that went oddly up and down, "is he all right?"
"Seems so," said the officer huskily, bending over the obscure and decaying skeleton in the box. "Wait a minute."
A vast heave went over Flambeau's huge figure. "And now I come to think of it," he cried, "why in the name of madness shouldn't he be all right? What is it gets hold of a man on these cursed cold mountains? I think it's the black, brainless repetition; all these forests, and over all an ancient horror of unconsciousness. It's like the dream of an atheist. Pine-trees and more pine-trees and millions more pine-trees——"
"God!" cried the man by the coffin, "but he hasn't got a head."
While the others stood rigid the priest, for the first time, showed a leap of startled concern.
"No head!" he repeated. "No head?" as if he had almost expected some other deficiency.
Half-witted visions of a headless baby born to Glengyle, of a headless youth hiding himself in the castle, of a headless man pacing those ancient halls or that gorgeous garden, passed in panorama through their minds. But even in that stiffened instant the tale took no root in them and seemed to have no reason in it. They stood listening to the loud woods and the shrieking sky quite foolishly, like exhausted animals. Thought seemed to be something enormous that had suddenly slipped out of their grasp.
"There are three headless men," said Father Brown, "standing round this open grave."
The pale detective from London opened his mouth to speak, and left it open like a yokel, while a long scream of wind tore the sky; then he looked at the axe in his hands as if it did not belong to him, and dropped it.
"Father," said Flambeau in that infantile and heavy voice he used very seldom, "what are we to do?"
His friend's reply came with the pent promptitude of a gun going off.
"Sleep!" cried Father Brown. "Sleep. We have come to the end of the ways. Do you know what sleep is? Do you know that every man who sleeps believes in God? It is a sacrament; for it is an act of faith and it is a food. And we need a sacrament, if only a natural one. Something has fallen on us that falls very seldom on men; perhaps the worst thing that can fall on them."
Craven's parted lips came together to say, "What do you mean?"
The priest had turned his face to the castle as he answered: "We have found the truth; and the truth makes no sense."
He went down the path in front of them with a plunging and reckless step very rare with him, and when they reached the castle again he threw himself upon sleep with the simplicity of a dog.
Despite his mystic praise of slumber, Father Brown was up earlier than anyone else except the silent gardener; and was found smoking a big pipe and watching that expert at his speechless labours in the kitchen garden. Towards daybreak the rocking storm had ended in roaring rains, and the day came with a curious freshness. The gardener seemed even to have been conversing, but at sight of the detectives he planted his spade sullenly in a bed and, saying something about his breakfast, shifted along the lines of