| Title | Pages | Publication | Code | Date | Publisher | System (Setting) |
|---|
 ?? 4 | |  Classic Investigators 1920s Volume One | SFX7000 | Nov 2024 | Stygian Fox | Call of Cthulhu (Classic) | |
| ?? 5 | | Classic Investigators 1920s Volume One | SFX7000 | Nov 2024 | Stygian Fox | Call of Cthulhu (Classic) | |
| ?? 6 | | Classic Investigators 1920s Volume One | SFX7000 | Nov 2024 | Stygian Fox | Call of Cthulhu (Classic) | |
 Afterlives | |  Afterlives | SFX4004 | 2018 | Stygian Fox | Call of Cthulhu (Classic) | |
| Artefacts and Curios | 95-138 |  Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| The Beginning of the Agency | 19-21 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
 The Curious Case of Bare Knuckle Bill | 54-69 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| The Early Years | 22-29 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| Ephemera | 79-102 |  The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| Forget Me Not | 24-37 | The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| Franz Josef Land | | Cartomancy: Multiverse Franz Josef Land | SFX2025 | 2023 | Stygian Fox | None | |
| Golden Square and its Environs | 48-53 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| Hell in Texas | 49-56 | The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| Intimate Encounters | 73-78 | The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| Ladybug, Ladybug, Fly Away Home | 6-23 | The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| The Later Years | 40-47 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| A Little Local Knowledge | | Classic Investigators 1920s Volume One | SFX7000 | Nov 2024 | Stygian Fox | Call of Cthulhu (Classic) | |
| Lovecraft Country | 1-3 | Cartomacy: Lovecraft Country | SFX2023 | 2019 | Stygian Fox | None | |
| The Night Season | 57-72 | The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| Ophelia Rising | 70-78 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| Populating London | 79-87 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
 The Prepared Investigator | | The Prepared Investigator | | Jul 2018 | Stygian Fox | Call of Cthulhu (Classic) | |
| The Prime Years | 30-39 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| Roots | 38-48 | The Mark of Evil | | | Stygian Fox | Call of Cthulhu (Now) | |
| The Sea Claims Us All | | Classic Investigators 1920s Volume One | SFX7000 | Nov 2024 | Stygian Fox | Call of Cthulhu (Classic) | |
| True Knowledge Expels the Night | | Classic Investigators 1920s Volume One | SFX7000 | Nov 2024 | Stygian Fox | Call of Cthulhu (Classic) | |
| The Weapons of Hudson and Brand | 88-94 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
| Whatever Happened to Alicia Thorne? | | Whatever Happened to Alicia Thorne? | FXC-13 | 2020 | Stygian Fox | Call of Cthulhu (Now) | Maine |
| The World of Hudson and Brand | 12-18 | Hudson and Brand, Inquiry Agents of the Obscure | 3004 | 2017 | Stygian Fox | Call of Cthulhu (Gaslight) | |
