The classic Call of Cthulhu role-playing campaign, published by Chaosium Inc played using the Trail of Cthulhu rule system from Pelgraine Press.
- Introduction
- 01: Terror on the Thames
- 02: The Doom Train
- 03: London 1923, Part One
- 04: London 1923, Part Two
- 05: Paris 1923, Part One
- 06: Paris 1923, Part Two
- 07: Paris 1923, Part Three
- 08: Lausanne 1923
- 09: Constantinople 1893, Part One
- 10: Constantinople 1893, Part Two
- 11: Constantinople 1893, Part Three
- 12: Milan 1923, Part One
- 13: Milan 1923, Part Two
- 14: Milan 1923, Part Three
- 15: Venice 1923, Part One
- 16: Venice 1923, Part Two
- 17: Venice 1923, Part Three
- 18: Constantinople 1204, Part One
- 19: Constantinople 1204, Part Two
- 20: Interlude One
- 21: Austria 1923, Part One
- 22: Austria 1923, Part Two
- 23: Austria 1923, Part Three
- 24: Sofia 1923, Part One
- 25: Sofia 1923, Part Two
- 26: Belgrade 1923, Part One
- 27: Belgrade 1923, Part Two
- 28: Return to Lausanne
- 29: Interlude Two
- 30: Vinkovci 1923, Part One
- 31: Vinkovci 1923, Part Two/Constantinople 330, Part One
- 32: Constantinople 330, Part Two
- 33: Constantinople 1923, Part One
- 34: Constantinople 1923, Part Two
- 35: On the Train, 1923, Part One
- 36: On the Train, 1923, Part Two
- 37: UnMaking
Museum of the Slightly Curious 