Ranny's mother, as if she had known what the house was after, played into its hands. Attracted by the Prospectus and the picture, she walked over to Southfields directly after tea. She looked at the house and fell in love with it at first sight. It had taken her no time to grasp the system. You couldn't get a house like that in Wandsworth, not for fifty or fifty-five, not counting rates and taxes. It was a sin, she said, to throw away the chance. As for furnishing, she had seen to that. In fact, Ranny without knowing it had seen to it himself. For the last five years he had kept his father's books, conceiving that herein he was fulfilling an essentially unproductive filial duty. And all the time his mother, with a fine sense of justice, had been putting by for him the remuneration that he should have had. Out of his seven years' weekly payments for board and lodging she had saved no less than a hundred pounds. Thus she had removed the one insurmountable obstacle from Ranny's path. It might have been better for Ranny if she hadn't. Because, on any scheme, on the lowest scale of expenditure, with the most dexterous manipulation of accounts, the house left him without a margin. But who would think of margins when he knew that he would grow steadily year by year into a landlord, the owner of house property, and _that_, if you would believe it, for less rent than if he didn't own it? So miraculous was the power of twenty-five pounds down. As if he thought the house could, after all, run away from him, he bicycled to Southfields with a letter for the Agent, closing with his offer that very night. And by a special appointment with the Agent, made as a concession to his peculiar circumstances, he and Violet went over before ten o'clock on Sunday morning to choose the house. For after all they hadn't chosen it yet. It was difficult to choose among the houses where all were exactly alike; but you could choose among the streets, for some were planted with young limes and some with plane trees, and one, Acacia Avenue, with acacias. Ransome liked the strange tufted acacias. "Puts me in mind of palm trees," he said. And finally his fancy and Violet's was taken by one house, Number Forty-seven Acacia Avenue, for it stood just opposite a young tree with a particularly luxuriant tuft. It was really as if the tree belonged to Number Forty-seven. Then they discovered that, outwardly uniform, these little houses had a subtle variety within. All, or nearly all, had different wall papers. In Number Forty-seven there were pink roses in the front sitting-room and blue roses in the back, and, upstairs, quiet, graceful patterns of love knots or trellis work. The love knots, blue with little pink rosebuds, in the front room (_their_ room) caught them. They were agreed in favor of Number Forty-seven.