By PAUL AND MABEL THORNE
Authors of "The Sheridan Road Mystery"
NEW YORK DODD,
MEAD AND COMPANY
1922
COPYRIGHT, 1922
BY DODD, MEAD AND COMPANY, INC.
THE PLIMPTON PRESS, NORWOOD, MASS
PRINTED IN THE UNITED STATES OF AMERICA
CONTENTS
- [CHAPTER I—THE TOLL IS EXACTED]
- [CHAPTER II—"FRIENDS OF THE POOR"]
- [CHAPTER III—ENGINEERING-CRIMINOLOGY]
- [CHAPTER IV—THE CAR IN THE FOG]
- [CHAPTER V—THE HAUNTED TREE]
- [CHAPTER VI—THE FLAMING HAND]
- [CHAPTER VII—SPIRIT CLUES]
- [CHAPTER VIII—THE GIRL ON THE HORSE]
- [CHAPTER IX—LUCY]
- [CHAPTER X—CROSSED THEORIES]
- [CHAPTER XI—TELEPHONE CALLS]
- [CHAPTER XII—SATURDAY]
- [CHAPTER XIII—A PUZZLING WARNING]
- [CHAPTER XIV—THE INTRUDERS]
- [CHAPTER XV—THE MASK OF DEATH]
- [CHAPTER XVI—THE FATAL DANCE]
- [CHAPTER XVII—AT THE DOORSTEP]
- [CHAPTER XVIII—TRIANGULATION]
- [CHAPTER XIX—FACE TO FACE]
- [CHAPTER XX—THE INVISIBLE DETECTIVE]