This storybook describes a peculiar house on a hill that remains still at night but bursts into mathematical magic with the sunrise. As the day begins, everything inside the house starts to multiply. A whimsical world of sevens is created. Seven teddy bears are in seven rooms, each taken by a child who finds seven pieces of dinnerware at their breakfast table. The meals and drinks, too, reflect this playful multiplicative chaos, as the house becomes an enchanting puzzle of counting sevens throughout the day.