Appearing in "There is a Fire Down Below"
- Edwin Jarvis
- Avengers West Coast
- Lava Men
- Cha'sa'dra (Main story and flashback)
- Professor Harker (First appearance)
- Gortokians (Only in flashback)
- Mister Fantastic (Reed Richards) (Only in flashback)
Synopsis for "There is a Fire Down Below"
The Sub-Mariner joins the trapped Avengers, and finally escape from a giant lava ball. The Avengers confront Jinku, the Lava Men's witch doctor who claims they have destroyed their god during the Inferno event. Jinku summons up a monstrous beast to destroy them.
- The origin of the Lava Men is revealed.