Within Act IV of Diablo 2, players can find 3 different QuestsQuests are usually unlocked through the main campaign, during a series of events, or are given by certain NPCs. The Quest Log button pops up in down on the left of the screen when a quest event is triggered. The final quest of each act must be completed to advance to the next act.


Act IV: The Harrowing

The Fallen Angel

(Given by Tyrael)

Tyrael tells you that there is a dark, tortured soul who was trapped within this forsaken realm long ago. He was called Izual by mortal men, and in ages past he was his most trusted Lieutenant. Yet against Tyrael's wishes he led an ill-fated assault upon the fiery Hellforge itself.

Despite his valor and strength, Izual was captured by the Prime Evils and twisted by their perverse power. They forced him to betray his own kind and give up Heaven's most guarded secrets. He became a corrupt shadow of his former self; a fallen angel trusted neither by Heaven nor Hell.

For his transgressions, Izual's spirit was bound within the form of a terrible creature which was summoned from the Abyss. His maddened spirit has resided within that tortured husk for many ages now.

Find Izual and release him from his cruel imprisonment. Put an end to his guilt and suffering.


  • +2 Skill Points

This quest is optional but useful due to the rewarded skill points.

Hell's Forge

(Given by Deckard Cain)

The time has come for you to destroy Mephisto's Soulstone! 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.


  • 4 Gems (1 Normal, 2 Flawless and 1 Perfect)

+1 randomly chosen rune per difficulty.

  • Normal difficulty range: El - Amn.
  • Nightmare difficulty range: Sol - Um.
  • Hell difficulty range: Hel - Gul

This quest is optional but useful due to the rewarded gems and rune.

Terror's End

(Given by Tyrael after destroying Mephisto's Soulstone)

Tyrael tells you that the time has come to hunt down and destroy Diablo himself. But beware, the Lord of Terror is not to be underestimated. He single-handedly destroyed the town of Tristam and corrupted the last noble hero who tried to stop him. This time, you must defeat him for good. Only by destroying the Soulstone which he carries will his spirit be banished forever. Good luck. Though this be our darkest hour, it may yet be your greatest moment.

Killing Diablo is required for the progress of the game.

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