Like a true philosopher, Flambeau had no aim in his holiday; but, like a true philosopher, he had an excuse. He had a sort of half purpose, which he took just so seriously that its success would crown the holiday, but just so lightly that its failure would not spoil it. Years ago, when he had been a king of thieves and the most famous figure in Paris, he had often received wild communications of approval, denunciation, or even love; but one had, somehow, stuck in his memory. It consisted simply of a visiting-card, in an envelope with an English postmark. On the back of the card was written in French and in green ink: "If you ever retire and become respectable, come and see me. I want to meet you, for I have met all the other great men of my time. That trick of yours of getting one detective to arrest the other was the most splendid scene in French history." On the front of the card was engraved in the formal fashion, "Prince Saradine, Reed House, Reed Island, Norfolk."
He had not troubled much about the prince then, beyond ascertaining that he had been a brilliant and fashionable figure in southern Italy. In his youth, it was said, he had eloped with a married woman of high rank; the escapade was scarcely startling in his social world, but it had clung to men's minds because of an additional tragedy: the alleged suicide of the insulted husband, who appeared to have flung himself over a precipice in Sicily. The prince then lived in Vienna for a time, but his more recent years seemed to have been passed in perpetual and restless travel. But when Flambeau, like the prince himself, had left European celebrity and settled in England, it occurred to him that he might pay a surprise visit to this eminent exile in the Norfolk Broads. Whether he should find the place he had no idea; and, indeed, it was sufficiently small and forgotten. But, as things fell out, he found it much sooner than he expected.
They had moored their boat one night under a bank veiled in high grasses and short pollarded trees. Sleep, after heavy sculling, had come to them early, and by a corresponding accident they awoke before it was light. To speak more strictly, they awoke before it was daylight; for a large lemon moon was only just setting in the forest of high grass above their heads, and the sky was of a vivid violet-blue, nocturnal but bright. Both men had simultaneously a reminiscence of childhood, of the elfin and adventurous time when tall weeds close over us like woods. Standing up thus against the large low moon, the daisies really seemed to be giant daisies, the dandelions to be giant dandelions. Somehow it reminded them of the dado of a nursery wall-paper. The drop of the river-bed sufficed to sink them under the roots of all shrubs and flowers and make them gaze upwards at the grass. "By Jove!" said Flambeau, "it's like being in fairyland."
Father Brown sat bolt upright in the boat and crossed himself. His movement was so abrupt that his friend asked him, with a mild stare, what was the matter.
"The people who wrote the mediaeval ballads," answered the priest, "knew more about fairies than you do. It isn't only nice things that happen in fairyland."
"Oh, bosh!" said Flambeau. "Only nice things could happen under such an innocent moon. I am for pushing on now and seeing what does really come. We may die and rot before we ever see again such a moon or such a mood."
"All right," said Father Brown. "I never said it was always wrong to enter fairyland. I only said it was always dangerous."
They pushed slowly up the brightening river; the glowing violet of the sky and the pale gold of the moon grew fainter and fainter, and faded into that vast colourless cosmos that precedes the colours of the dawn. When the first faint stripes of red and gold and grey split the horizon from end to end they were broken by the black bulk of a town or village which sat on the river just ahead of them. It was already an easy twilight, in which all things were visible, when they came under the hanging roofs and bridges of this riverside hamlet. The houses, with their long, low, stooping roofs, seemed to come down to drink at the river, like huge grey and red cattle. The broadening and whitening dawn had already turned to working daylight before they saw any living creature on the wharves and bridges of that silent town. Eventually they saw a very placid and prosperous man in his shirt sleeves, with a face as round as the recently sunken moon, and rays of red whisker around the low arc of it, who was leaning on a post above the sluggish tide. By an impulse not to be analysed, Flambeau rose to his full height in the swaying boat and shouted at the man to ask if he knew Reed Island or Reed House. The prosperous man's smile grew slightly more expansive, and he simply pointed up the river towards the next bend of it. Flambeau went ahead without further speech.
The boat took many such grassy corners and followed many such reedy and silent reaches of river; but before the search had become monotonous they had swung round a specially sharp angle and come into the silence of a sort of pool or lake, the sight of which instinctively arrested them. For in the middle of this wider piece of water, fringed on every side with rushes, lay a long, low islet, along which ran a long, low house or bungalow built of bamboo or some kind of tough tropic cane. The upstanding rods of bamboo which made the walls were pale yellow, the sloping rods that made the roof were of darker red or brown, otherwise the long house was a thing of repetition and monotony. The early morning breeze rustled the reeds round the island and sang in the strange ribbed house as in a giant pan-pipe.
"By George!" cried Flambeau; "here is the place, after all! Here is Reed Island, if ever there was one. Here is Reed House, if it is anywhere. I believe that fat man with whiskers was a fairy."
"Perhaps," remarked Father Brown impartially. "If he was, he was a bad fairy."
But even as he spoke the impetuous Flambeau had run his boat ashore in the rattling reeds, and they stood in the long, quaint islet beside the odd and silent house.
The house stood with its back, as it were, to the river and the only landing-stage; the main entrance was on the other side, and looked down the long island garden. The visitors approached it, therefore, by a small path running round nearly three sides of the house, close under the low eaves. Through three different windows on three different sides they looked in on the same long, well-lit room, panelled in light wood, with a large number of looking-glasses, and laid out as for an elegant lunch. The front door, when they came round to it at last, was flanked by two turquoise-blue flower pots. It was opened by a butler of the drearier type—long, lean, grey and listless—who murmured that Prince Saradine was from home at present, but was expected hourly; the house being kept ready for him and his guests. The exhibition of the card with the scrawl of green ink awoke a flicker of life in the parchment face of the depressed retainer, and it was with a certain shaky courtesy that he suggested that the strangers should remain. "His Highness may be here any minute," he said, "and would be distressed to have just missed any gentleman he had invited. We have orders always to keep a little cold lunch for him and his friends, and I am sure he would wish it to be offered."
Moved with curiosity to this minor adventure, Flambeau assented gracefully, and followed the old man, who ushered him ceremoniously into the long, lightly panelled room. There was nothing very notable about it, except the rather unusual alternation of many long, low windows with many long, low oblongs of looking-glass, which gave a singular air of lightness and unsubstantialness to the place. It was somehow like lunching out of doors. One or two pictures of a quiet kind hung in the corners, one a large grey photograph of a very young man in uniform, another a red chalk sketch of two long-haired boys. Asked by Flambeau whether the soldierly person was the prince, the butler answered shortly in the negative; it was the prince's younger brother, Captain Stephen Saradine, he said. And with that the old man seemed to dry up suddenly and lose all taste for conversation.