| CHAPTER | | PAGE |
| I | Pennington Lawton and the Grim Reaper | [1] |
| II | Revelations | [16] |
| III | Henry Blaine Takes a Hand | [29] |
| IV | The Search | [38] |
| V | The Will | [53] |
| VI | The First Counter-move | [66] |
| VII | The Letter | [78] |
| VIII | Guy Morrow Faces a Problem | [98] |
| IX | Gone! | [104] |
| X | Margaret Hefferman’s Failure | [116] |
| XI | The Confidence of Emily | [134] |
| XII | The Cipher | [154] |
| XIII | The Empty House | [171] |
| XIV | In the Open | [192] |
| XV | Checkmate! | [207] |
| XVI | The Library Chair | [224] |
| XVII | The Rescue | [240] |
| XVIII | The Trap | [255] |
| XIX | The Unseen Listener | [272] |
| XX | The Crevice | [290] |
| XXI | Cleared Skies | [308] |