Isabel's son, Charlie, is now of an age, eighteen months, to have a social life, and so off they go to a birthday party, where, much to Isabel's surprise, she finds Minty Auchterlonie, the high-flying financier she first encountered in The Sunday Philosophy Club. Minty had seemed to Isabel a woman of ruthless ambition, but the question of her integrity had never truly been answered. Now, when Minty takes Isabel into her confidence about the complicated...