Cover; The Mayor's Wife; Copyright; CONTENTS; CHAPTER I; A SPY'S DUTY; CHAPTER II; QUESTIONS; CHAPTER III; IN THE GABLE WINDOW; CHAPTER IV; LIGHTS -- SOUNDS; CHAPTER V; THE STRANGE NEIGHBORS NEXT DOOR; CHAPTER VI; AT THE STAIR-HEAD; CHAPTER VII; A MOVING SHADOW; CHAPTER VIII; THE PARAGRAPH; CHAPTER IX; SCRAPS; CHAPTER X; A GLIMMER OF THE TRUTH; CHAPTER XI; BESS; CHAPTER XII; SEARCHINGS; CHAPTER XIII; A DISCOVERY; CHAPTER XIV; I SEEK HELP; CHAPTER XV; HARDLY A COINCIDENCE; CHAPTER XVI; IN THE LIBRARY; CHAPTER XVIII; THE TWO WEIRD SISTERS; CHAPTER XVIII; THE MORNING NEWS; CHAPTER XIX.