| CHAPTER | | PAGE |
| I | The House in Charlton Street | [3] |
| II | Something Turns Up | [16] |
| III | The Discovery in the Attic | [32] |
| IV | A Key to the Mystery | [53] |
| V | "The Lass of Richmond Hill" | [65] |
| VI | A Surprise | [79] |
| VII | The Discoveries Corinne Made | [91] |
| VIII | Baffled! | [102] |
| IX | Introducing Alexander | [114] |
| X | Alexander Takes Hold | [126] |
| XI | Alexander Springs a Surprise | [135] |
| XII | The Mystery Unravels Further | [149] |
| XIII | Alexander Engages in Some Historical Research | [162] |
| XIV | A Belated Discovery and a Solemn Conclave | [179] |
| XV | Sarah Takes a Hand in the Game | [192] |
| XVI | The Sapphire Signet | [209] |
| XVII | In Which Sarah Changes Her Mind | [228] |
| XVIII | Two Surprises | [245] |
| XIX | The Missing Links | [255] |