between the front door and the staircase, to mark the line of the footlights.
How even such a banquet of bosh was got ready in the time remained a riddle. But they went at it with that mixture of recklessness and industry that lives when youth is in a house; and youth was in that house that night, though not all may have isolated the two faces and hearts from which it flamed. As always happens, the invention grew wilder and wilder through the very tameness of the bourgeois conventions from which it had to create. The columbine looked charming in an outstanding skirt that strangely resembled the large lamp-shade in the drawing-room. The clown and pantaloon made themselves white with flour from the cook, and red with rouge from some other domestic, who remained (like all true Christian benefactors) anonymous. The harlequin, already clad in silver paper out of cigar boxes, was, with difficulty, prevented from smashing the old Victorian lustre chandeliers, that he might cover himself with resplendent crystals. In fact he would certainly have done so, had not Ruby unearthed some old pantomime paste jewels she had worn at a fancy dress party as the Queen of Diamonds. Indeed, her uncle, James Blount, was getting almost out of hand in his excitement; he was like a schoolboy. He put a paper donkey's head unexpectedly on Father Brown, who bore it patiently, and even found some private manner of moving his ears. He even essayed to put the paper donkey's tail to the coat-tails of Sir Leopold Fischer. This, however, was frowned down. "Uncle is too absurd," cried Ruby to Crook, round whose shoulders she had seriously placed a string of sausages. "Why is he so wild?"
"He is harlequin to your columbine," said Crook. "I am only the clown who makes the old jokes."
"I wish you were the harlequin," she said, and left the string of sausages swinging.
Father Brown, though he knew every detail done behind the scenes, and had even evoked applause by his transformation of a pillow into a pantomime baby, went round to the front and sat among the audience with all the solemn expectation of a child at his first matinee. The spectators were few, relations, one or two local friends, and the servants; Sir Leopold sat in the front seat, his full and still fur-collared figure largely obscuring the view of the little cleric behind him; but it has never been settled by artistic authorities whether the cleric lost much. The pantomime was utterly chaotic, yet not contemptible; there ran through it a rage of improvisation which came chiefly from Crook the clown. Commonly he was a clever man, and he was inspired to-night with a wild omniscience, a folly wiser than the world, that which comes to a young man who has seen for an instant a particular expression on a particular face. He was supposed to be the clown, but he was really almost everything else, the author (so far as there was an author), the prompter, the scene-painter, the scene-shifter, and, above all, the orchestra. At abrupt intervals in the outrageous performance he would hurl himself in full costume at the piano and bang out some popular music equally absurd and appropriate.
The climax of this, as of all else, was the moment when the two front doors at the back of the scene flew open, showing the lovely moonlit garden, but showing more prominently the famous professional guest; the great Florian, dressed up as a policeman. The clown at the piano played the constabulary chorus in the "Pirates of Penzance," but it was drowned in the deafening applause, for every gesture of the great comic actor was an admirable though restrained version of the carriage and manner of the police. The harlequin leapt upon him and hit him over the helmet; the pianist playing "Where did you get that hat?" he faced about in admirably simulated astonishment, and then the leaping harlequin hit him again (the pianist suggesting a few bars of "Then we had another one"). Then the harlequin rushed right into the arms of the policeman and fell on top of him, amid a roar of applause. Then it was that the strange actor gave that celebrated imitation of a dead man, of which the fame still lingers round Putney. It was almost impossible to believe that a living person could appear so limp.
The athletic harlequin swung him about like a sack or twisted or tossed him like an Indian club; all the time to the most maddeningly ludicrous tunes from the piano. When the harlequin heaved the comic constable heavily off the floor the clown played "I arise from dreams of thee." When he shuffled him across his back, "With my bundle on my shoulder," and when the harlequin finally let fall the policeman with a most convincing thud, the lunatic at the instrument struck into a jingling measure with some words which are still believed to have been, "I sent a letter to my love and on the way I dropped it."
At about this limit of mental anarchy Father Brown's view was obscured altogether; for the City magnate in front of him rose to his full height and thrust his hands savagely into all his pockets. Then he sat down nervously, still fumbling, and then stood up again. For an instant it seemed seriously likely that he would stride across the footlights; then he turned a glare at the clown playing the piano; and then he burst in silence out of the room.
The priest had only watched for a few more minutes the absurd but not inelegant dance of the amateur harlequin over his splendidly unconscious foe. With real though rude art, the harlequin danced slowly backwards out of the door into the garden, which was full of moonlight and stillness. The vamped dress of silver paper and paste, which had been too glaring in the footlights, looked more and more magical and silvery as it danced away under a brilliant moon. The audience was closing in with a cataract of applause, when Brown felt his arm abruptly touched, and he was asked in a whisper to come into the colonel's study.
He followed his summoner with increasing doubt, which was not dispelled by a solemn comicality in the scene of the study. There sat Colonel Adams, still unaffectedly dressed as a pantaloon, with the knobbed whalebone nodding above his brow, but with his poor old eyes sad enough to have sobered a Saturnalia. Sir Leopold Fischer was leaning against the mantelpiece and heaving with all the importance of panic.
"This is a very painful matter, Father Brown," said Adams. "The truth is, those diamonds we all saw this afternoon seem to have vanished from my friend's tail-coat pocket. And as you——"
"As I," supplemented Father Brown, with a broad grin, "was sitting just behind him——"
"Nothing of the sort shall be suggested," said Colonel Adams, with a firm look at Fischer, which rather implied that some such thing had been suggested. "I only ask you to give me the assistance that any gentleman might give."
"Which is turning out his pockets," said Father Brown, and proceeded to do so, displaying seven and sixpence, a return ticket, a small silver crucifix, a small breviary, and a stick of chocolate.
The colonel looked at him long, and then said, "Do you know, I should like to see the inside of your head more than the inside of your pockets. My daughter is one of your people, I know; well, she has lately——" and he stopped.
"She has lately," cried out old Fischer, "opened her father's house to a cut-throat Socialist, who says openly he would steal anything from a richer man. This is the end of it. Here is the richer man—and none the richer."
"If you want the inside of my head you can have it," said Brown rather wearily. "What it's worth you can say afterwards. But the first thing I find in that disused pocket is this: that men who mean to steal diamonds don't talk Socialism. They are more likely," he added demurely, "to denounce it."
Both the others shifted sharply and the priest went on:
"You see, we know these people, more or less. That Socialist would no more steal a diamond than a Pyramid. We ought to look at once to the one man we don't know. The fellow acting the policeman—Florian. Where is he exactly at this minute, I wonder."
The pantaloon sprang erect and strode out of the room. An interlude ensued, during which the millionaire stared at the priest, and the priest at his breviary; then the pantaloon returned and said, with staccato gravity, "The policeman is still lying on the stage. The curtain has gone up and down six times; he is still lying there."
Father Brown dropped his book and stood staring with a look of blank mental ruin. Very slowly a light began
