When Anna Estcourt was twenty-five, and had begun to wonder whether the pleasure extractable from life at all counterbalanced the bother of it, a wonderful thing happened. She was an exceedingly pretty girl, who ought to have been enjoying herself. She had a soft, irregular face, charming eyes, dimples, a pleasant laugh, and limbs that were long and slender. Certainly she ought to have been enjoying herself. Instead, she wasted her time in that foolish pondering over the puzzles of existence, over those unanswerable whys and wherefores, which is as a rule restricted, among women, to the elderly and plain. Many and various are the motives that impel a woman so to ponder; in Anna's case the motive was nothing more exalted than the perpetual presence of a sister-in-law.