| Name | Class | C. | Type | Icons | Traits | Set | Encounter |
|---|---|---|---|---|---|---|---|
| Return to Undimensioned and Unseen | Mythos | Scenario | Return to the Dunwich Legacy 41 | Return to Undimensioned and Unseen 1 | |||
| Brood of Yog-Sothoth: Charging Beast | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 42 | Return to Undimensioned and Unseen 2 | ||
| Brood of Yog-Sothoth: Swelling Devourer | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 43 | Return to Undimensioned and Unseen 3 | ||
| Brood of Yog-Sothoth: Thrashing Spawn | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 44 | Return to Undimensioned and Unseen 4 | ||
| Brood of Yog-Sothoth: Amorphous Terror | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 45 | Return to Undimensioned and Unseen 5 | ||
| Imperceptible Creature | Mythos | Treachery | Power. | Return to the Dunwich Legacy 46 | Return to Undimensioned and Unseen 6-7 |