The Three Impostors by Arthur Machen

Mr. Dyson, walking leisurely along Oxford. Street, and staring with bland inquiry at whatever caught his attention, enjoyed in all its rare flavors the sensation that he was really very hard at work. His observation of mankind, the traffic, and the shop-windows tickled his faculties with an exquisite bouquet; he looked serious, as one looks on whom charges of weight and moment are laid, and he was attentive in his glances to right and left, for fear lest he should miss some circumstance of more acute significance. He had narrowly escaped being run over at a crossing by a charging van, for he hated to hurry his steps, and indeed the afternoon was warm; and he had just halted by a place of popular refreshment, when the astounding gestures of a well dressed individual on the opposite pavement held him enchanted and gasping like a fish. A treble line of hansoms, carriages, vans, cabs, and omnibuses, was tearing east and west, and not the most daring adventurer of the crossings would have cared to try his fortune; but the person who had attracted Dyson's attention seemed to rage on the very edge of the pavement, now and then darting forward at the hazard of instant death, and at each repulse absolutely dancing with excitement, to the rich amusement of the passers-by. At last, a gap that would, have tried the courage of a street-boy appeared between the serried lines of vehicles, and the man rushed across in a frenzy, and escaping by a hair's breadth pounced upon Dyson as a tiger pounces on her prey. "I saw you looking about you," he said, sputtering out his words in his intense eagerness; "would you mind telling me this? Was the man who came out of the Aerated Bread Shop and jumped, into the hansom three minutes ago a youngish looking man with dark whiskers and spectacles? Can't you speak, man? For Heaven's sake can't you speak? Answer me; it's a matter of life and death."

The words bubbled and boiled out of the man's mouth in the fury of his emotion, his face went from red to white, and the beads of sweat stood out on his forehead, and he stamped his feet as he spoke and tore with his hand at his coat, as if something swelled and choked him, stopping the passage of his breath.