The time has come for you to destroy Mephisto's Soulstone!
Although I picked it up before entering the Infernal Gate, I believe you should carry out this crucial mission.
(only displayed if character did not pick it up)
Take the Stone to the Hellforge. Place it upon the forge and strike it soundly with the Hammer.
Only by doing this can you prevent Mephisto from manifesting in this world ever again.
- Deckard Cain
- Upon descending stairs from City of the Damned to River of Flame, turn left: waypoint is always to east, while Hellforge is always located at northwest or southeast end of penninsula in river. If waypoint is found before Hellforge, turn back: upon approaching Hellforge, quest notification icon will appear in bottom-left corner of screen.
Hell Forge Hammer
- Mephisto's Soulstone can be placed upon Hellforge by clicking on it if player picked it up after killing Mephisto at end of Act 3, or if player has talked to Deckard Cain and received it from him (may have dropped on floor if there was insufficient inventory space). However, it can only be destroyed using the Hell Forge Hammer, which is carried by Hephasto the Armorer and dropped upon his death.
- He has no inherent immunity even in Hell, and can never become Immune to Magic or Immune to Poison (he has Poison Resist -50% in Normal and Nightmare). Can become Immune to Physical (100%) when Stone Skin in Hell, and also Immune to Fire, Immune to Lightning or Immune to Cold with other Unique bonuses.
- Knockback applies, and can be used to pin him against an obstacle to incapacitate him.
- Character must equip Hell Forge Hammer and attack Mephisto's Soulstone placed upon Hellforge a number of times to destroy it.
- Runes have equal chance of dropping, so each has 1/11 chance.
- Quest is completed for all allied players present in Act 4 when Mephisto's Soulstone is destroyed: one Perfect gem is dropped for each allied player. Hellforge quest is normally completed by players that are not allied (it is good etiquette to leave party before completing quest), so that each will also receive other gems (and Rune in Expansion games) when they destroy their own.
- Although unnecessary, returning to talk to Deckard Cain prompts the following:
Surely, even Diablo, himself, sensed the fury unleashed when you smashed his Brother's Soulstone.
- Deckard Cain