It was the proud colony of wallflowers that first made Uncle Felix like the place. Their loveliness fluttered in the winds, and their perfume stole down deliciously above the rubbish and neglect. They seemed to him the soul of ruins triumphing over outward destruction. Hence the delicate melancholy in their scent and hence their lofty chosen perch. Out of decay they grew, yet invariably above it. Both sun and stars were in their flaming colouring, and their boldness was true courage. They caught the wind, they held the sunset and the dawn; they turned the air into a shining garden. They stood somehow for a yearning beauty in his own heart that expressed itself in his stories. "If you pick them," he warned Tim, who climbed like a monkey, and was as destructive as his age, "the place will lose its charm. They grow for the End of the World, and the End of the World belongs to them. This wonderful spot will have no beauty when they're gone." To wear a blossom in the hair or buttonhole was to be protected against decay and ugliness. Most wonderful of all, however, was the door in the old grey fence; for it was a Gateway, and a Gateway, according to Uncle Felix, was a solemn thing. None knew where it led to, it was a threshold into an unknown world. Ordinary doors, doors in a house, for instance, were not Gateways; they merely opened into rooms and other familiar places. Dentists, governesses, and bedrooms existed behind ordinary, indoor doors; but out-of-doors opened straight into the sky, and in virtue of it were extraordinary. They were Gateways. At the End of the World stood a stupendous, towering door that was a Gateway. Another, even more majestic, rose at the end of life. This door in the grey fence was a solemn, mysterious, and enticing Gateway--into everything worth seeing. It was invariably kept locked; it led into the high-road that slithered along secretly and sedulously--to London. For the children it was out of bounds. Here the Policeman lived in constant terror of his life, and here went to and fro the strange world of Passers-by. The white road flowed past like a river. It moved. From the lower branches of the horse-chestnut tree they could just see it slide; also when the swing went extra high, and from the end of the prostrate elm. It went in both directions at once. It encircled the globe, going under the sea too. The door leading into it was a quay or port. But the brass knob never turned; the Gardener said there was no key; and from the outer side the handle had long since been removed, lest Passers-by might see it and come in. Even the keyhole had been carefully stuffed up with that stringy stuff the Gardener carried in his pockets. Till, finally, something happened that made the End of the World seem suddenly a new place. Tim noticed that the stringy stuff had been removed.