"Knocking about on the loose," he explained further, then paused and stared into the upturned faces; "sort of escaped days that have never been torn off calendars or ticked away by clocks--unused, unfilled, unlived--slipped out of Time, that is--" "Then when Daddy said, 'A day is coming,' and all that--?" Tim managed to squeeze out as though the pain of the excitement hurt his lips. "Of course," replied Uncle Felix, nodding his great head, "of course. Sooner or later one of these lost Extra Days is bound to crop up. And what's more--" he glanced down significantly at the stopped alarum-clock--"I think--" He broke off in the middle of the sentence. They all stood up. Tim picked up the clock and handed it to his uncle, who held it tightly against his chest a moment, then put it into his capacious pocket. "I think," he went on enormously, "it's come!" An entire minute passed without a sound. "We can fill it with anything we like?" asked Judy, overawed a little. "Anything we like," came the sublime reply. "And do things over and over again--sort of double--and no hurry?" Tim whispered. "Anything, anywhere, anyhow, and no end to it all," he answered gloriously. "No hurry either!" It was too much to think about all at once, too big to realise. They all sat down again beside Maria, who had not moved an inch in any direction at all. She was a picture of sublime repose. "We have only got to find it, then climb into it, then sail away," murmured Uncle Felix, with a strange catch in his breath they readily understood. "When will it begin?" both children asked in the same breath. "At dawn," he said. "To-morrow morning?" "At dawn to-morrow morning." "But to-morrow's Sunday," they objected. "To-morrow's--an Extra Day," he said amazingly. They hesitated a moment, stared, frowned, smiled, then opened their eyes and mouths still wider than before. "Oh, like that!" they exclaimed. "Like that, yes," he said finally. "It means getting in behind Time, you see. There's no Time in an Extra Day because it's never been recorded by calendar or clock. And that means getting behind the great hurrying humbug of a thing that blinds and confuses everybody all the world over--it means getting closer to the big Reality that--" He broke off sharply, aware that his own emotion was carrying him out of his depth, and out of their depth likewise. He changed the sentence: "We shall be in Eternity," he whispered very softly, so softly that it was scarcely audible perhaps.