CONTENTS PROLOGUE BOOK I THE ADVENT BOOK II THE ENCOUNTER BOOK III THE VICTORY Persons who do not like tiresome prologues, need not read this one. It is essential only to the situation, not to the story. PROLOGUE "You must give me a moment," said the old man, leaning back. Percy resettled himself in his chair and waited, chin on hand. It was a very silent room in which the three men sat, furnished with the extreme common sense of the period. It had neither window nor door; for it was now sixty years since the world, recognising that space is not confined to the surface of the globe, had begun to burrow in earnest. Old Mr. Templeton's house stood some forty feet below the level of the Thames embankment, in what was considered a somewhat commodious position, for he had only a hundred yards to walk before he reached the station of the Second Central Motor-circle, and a quarter of a mile to the volor-station at Blackfriars. He was over ninety years old, however, and seldom left his house now. The room itself was lined throughout with the delicate green jade-enamel prescribed by the Board of Health, and was suffused with the artificial sunlight discovered by the great Reuter forty years before; it had the colour-tone of a spring wood, and was warmed and ventilated through the classical frieze grating to the exact temperature of 18 degrees Centigrade. Mr. Templeton was a plain man, content to live as his father had lived before him. The furniture, too, was a little old-fashioned in make and design, constructed however according to the prevailing system of soft asbestos enamel welded over iron, indestructible, pleasant to the touch, and resembling mahogany. A couple of book-cases well filled ran on either side of the bronze pedestal electric fire before which sat the three men; and in the further corners stood the hydraulic lifts that gave entrance, the one to the bedroom, the other to the corridor fifty feet up which opened on to the Embankment.