- File 24: The Needle Woods
- File 23: Winter
- File 22: Summer and Autumn
- File 21: The Forest of Pressure
- File 20: Further Ruins
- File 19: Inexplicable Island
- File 18: The Stygosea
- File 17: Premature Departure
- File 16: The Shore
- File 15: The Woolly Borer Connection
- File 14: Questionable Decisions
- File 13: The Hatching of the Wamboloos
- File 12: Whistling Walltubes
- File 11: Whiteback Lasher
- File 10: Fungal Paradise
- File 09: Deception
- File 08: Bloodstalker Fantails
- File 07: Companionship
- File 06: Ruins
- File 05: The Upper Layer
- File 04: Sustenance
- File 03: Ringtail Troglohoppers
- File 02: Aeroplankton
- File 01: The Great Subterrane
- Prologue