"And why?" asked Craven, amused with the little man's hobby.
"I'm doubtful about it," said the other, "because old Gow was doubtful about it himself. He put his spade in methodically in every place but just this. There must be a mighty fine potato just here."
Flambeau pulled up the spade and impetuously drove it into the place. He turned up, under a load of soil, something that did not look like a potato, but rather like a monstrous, over-domed mushroom. But it struck the spade with a cold click; it rolled over like a ball, and grinned up at them.
"The Earl of Glengyle," said Brown sadly, and looked down heavily at the skull.
Then, after a momentary meditation, he plucked the spade from Flambeau, and, saying "We must hide it again," clamped the skull down in the earth. Then he leaned his little body and huge head on the great handle of the spade, that stood up stiffly in the earth, and his eyes were empty and his forehead full of wrinkles. "If one could only conceive," he muttered, "the meaning of this last monstrosity." And leaning on the large spade handle, he buried his brows in his hands, as men do in church.
All the corners of the sky were brightening into blue and silver; the birds were chattering in the tiny garden trees; so loud it seemed as if the trees themselves were talking. But the three men were silent enough.
"Well, I give it all up," said Flambeau at last boisterously. "My brain and this world don't fit each other; and there's an end of it. Snuff, spoilt Prayer Books, and the insides of musical boxes—what——"
Brown threw up his bothered brow and rapped on the spade handle with an intolerance quite unusual with him. "Oh, tut, tut, tut, tut!" he cried. "All that is as plain as a pikestaff. I understood the snuff and clockwork, and so on, when I first opened my eyes this morning. And since then I've had it out with old Gow, the gardener, who is neither so deaf nor so stupid as he pretends. There's nothing amiss about the loose items. I was wrong about the torn mass-book, too; there's no harm in that. But it's this last business. Desecrating graves and stealing dead men's heads—surely there's harm in that? Surely there's black magic still in that? That doesn't fit in to the quite simple story of the snuff and the candles." And, striding about again, he smoked moodily.
"My friend," said Flambeau, with a grim humour, "you must be careful with me and remember I was once a criminal. The great advantage of that estate was that I always made up the story myself, and acted it as quick as I chose. This detective business of waiting about is too much for my French impatience. All my life, for good or evil, I have done things at the instant; I always fought duels the next morning; I always paid bills on the nail; I never even put off a visit to the dentist——"
Father Brown's pipe fell out of his mouth and broke into three pieces on the gravel path. He stood rolling his eyes, the exact picture of an idiot. "Lord, what a turnip I am!" he kept saying. "Lord, what a turnip!" Then, in a somewhat groggy kind of way, he began to laugh.
"The dentist!" he repeated. "Six hours in the spiritual abyss, and all because I never thought of the dentist! Such a simple, such a beautiful and peaceful thought! Friends, we have passed a night in hell; but now the sun is risen, the birds are singing, and the radiant form of the dentist consoles the world."
"I will get some sense out of this," cried Flambeau, striding forward, "if I use the tortures of the Inquisition."
Father Brown repressed what appeared to be a momentary disposition to dance on the now sunlit lawn and cried quite piteously, like a child, "Oh, let me be silly a little. You don't know how unhappy I have been. And now I know that there has been no deep sin in this business at all. Only a little lunacy, perhaps—and who minds that?"
He spun round once more, then faced them with gravity.
"This is not a story of crime," he said; "rather it is the story of a strange and crooked honesty. We are dealing with the one man on earth, perhaps, who has taken no more than his due. It is a study in the savage living logic that has been the religion of this race.
"That old local rhyme about the house of Glengyle—
" 'As green sap to the simmer trees
Is red gold to the Ogilvies'—
was literal as well as metaphorical. It did not merely mean that the Glengyles sought for wealth; it was also true that they literally gathered gold; they had a huge collection of ornaments and utensils in that metal. They were, in fact, misers whose mania took that turn. In the light of that fact, run through all the things we found in the castle. Diamonds without their gold rings; candles without their gold candlesticks; snuff without the gold snuff-boxes; pencil-leads without the gold pencil-cases; a walking stick without its gold top; clockwork without the gold clocks—or rather watches. And, mad as it sounds, because the halos and the name of God in the old missals were of real gold; these also were taken away."
The garden seemed to brighten, the grass to grow gayer in the strengthening sun, as the crazy truth was told. Flambeau lit a cigarette as his friend went on.
"Were taken away," continued Father Brown; "were taken away—but not stolen. Thieves would never have left this mystery. Thieves would have taken the gold snuff-boxes, snuff and all; the gold pencil-cases, lead and all. We have to deal with a man with a peculiar conscience, but certainly a conscience. I found that mad moralist this morning in the kitchen garden yonder, and I heard the whole story.
"The late Archibald Ogilvie was the nearest approach to a good man ever born at Glengyle. But his bitter virtue took the turn of the misanthrope; he moped over the dishonesty of his ancestors, from which, somehow, he generalised a dishonesty of all men. More especially he distrusted philanthropy or free-giving; and he swore if he could find one man who took his exact rights he should have all the gold of Glengyle. Having delivered this defiance to humanity he shut himself up, without the smallest expectation of its being answered. One day, however, a deaf and seemingly senseless lad from a distant village brought him a belated telegram; and Glengyle, in his acrid pleasantry, gave him a new farthing. At least he thought he had done so, but when he turned over his change he found the new farthing still there and a sovereign gone. The accident offered him vistas of sneering speculation. Either way, the boy would show the greasy greed of the species. Either he would vanish, a thief stealing a coin; or he would sneak back with it virtuously, a snob seeking a reward. In the middle of that night Lord Glengyle was knocked up out of his bed—for he lived alone—and forced to open the door to the deaf idiot. The idiot brought with him, not the sovereign, but exactly nineteen shillings and eleven-pence three-farthings in change.
"Then the wild exactitude of this action took hold of the mad lord's brain like fire. He swore he was Diogenes, that had long sought an honest man, and at last had found one. He made a new will, which I have seen. He took the literal youth into his huge, neglected house, and trained him up as his solitary servant and—after an odd manner—his heir. And whatever that queer creature understands, he understood absolutely his lord's two fixed ideas: first, that the letter of right is everything; and second, that he himself was to have the gold of Glengyle. So far, that is all; and that is simple. He has stripped the house of gold, and taken not a grain that was not gold; not so much as a grain of snuff. He lifted the gold leaf off an old illumination, fully satisfied that he left the rest unspoilt. All that I understood; but I could not understand this skull business. I was really uneasy about that human head buried among the potatoes. It distressed me—till Flambeau said the word.
"It will be all right. He will put the skull back in the grave, when he has taken the gold out of the tooth."
And, indeed, when Flambeau crossed the hill that morning, he saw that strange being, the just miser, digging at the desecrated grave, the plaid round his throat thrashing out in the mountain wind; the sober top hat on his head.