Chapter 1: Contradictory Letters

Chapter 2: On the Road

Chapter 3: The Dochart Pit

Chapter 4: The Ford Family

Chapter 5: Some Strange Phenomena

Chapter 6: Simon Ford's Experiment

Chapter 7: New Aberfoyle

Chapter 8: Exploring

Chapter 9: The Fire-Maidens

Chapter 10: Coal Town

Chapter 11: Hanging by a Thread

Chapter 12: Nell Adopted

Chapter 13: On the Revolving Ladder

Chapter 14: A Sunrise

Chapter 15: Loch Lomond and Loch Katrine

Chapter 16: A Final Threat

Chapter 17: The "Monk"

Chapter 18: Nell's Wedding

Chapter 19: The Legend of Old Silfax