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Act IV - The Harrowing - is the last act of Diablo II (with a fifth added in the expansion) where you follow Diablo to the Pandemonium Fortress on the outskirts of Hell to prevent him from ever returning to Sanctuary.
Deckard Cain welcomes the player "to the Last Bastion of Light" in the Burning Hells and asks the hero to talk to Tyrael. He is asked to travel to the plains of Hell and destroy the Demonic Vessel holding Izual, which will free the Angel.
When freed, Izual informs the player that it was he who told the Prime Evils of the Soulstones' power and that the demons had been behind this immense plan to gain the power of the stones. With this information, Deckard Cain urges the player to destroy Mephisto's Soulstone at the Hellforge. The Forge is guarded by Hephasto, the Armorer of Hell, and the player has to kill him to destroy the Soulstone.
With nothing else in the path of defeating Diablo, Tyrael asks the player to meet up with Hadriel, another , who has been observing the Chaos Sanctuary: Diablo's domain. He has concluded that Diablo, although his big mean red self, has not reached his maximum potential after possessing the Dark Wanderer. In fact, the transformation has left him weak.
The player sets out to defeat Diablo's three generals to open the five seals protecting Diablo. Then battles the Lord of Terror, defeating him and destroying his Soulstone on the Hellforge.
The fourth Act by far the shortest one in the game, both in terms of actual levels as well as the mileage you have to run to get to the end. The layout comes in either the big squares of the Outer Steppes, and the long walkways in the River of Flames.
|Levels of Act IV [ ]|
- Deckard Cain: Identifier and quest advice
- Halbu: Merchant of Light
- Hadriel: Angel on scouting duty
- Izual NPC: A fallen but restored angel
- Jamella: Merchant of Light
- Tyrael: Quest giver
Just as with the number of levels and NPCs, Act IV also has the least quests. It's in fact the only act with only three as opposed to six.
They are all directly related to the story. Without defeating Izual, you won't learn about the dangers of the Soulstones, without destroying them on the Hellforge, the Prime Evils are free to use and abuse their power and without killing Diablo in his weakened state, you're basically screwed.
|Levels of Diablo II - Acts - Towns - Waypoints [ ] Diablo II: Act I Act II Act III Act IV LoD: Act V|
|Act I - Quests [ ]|
|Act II - Quests [ ]|
|Act III - Quests [ ]|
|Act IV - Quests [ ]|
|Act V - Quests [ ]|
Note: The Pandemonium Event
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