Diablo 4 is no stranger to secrets and easter eggs, and in Season 11, players can uncover a secret meeting between four Lesser Evils by using Purified Essences. You may have picked up one of the latter during your time in the game, but with no clear markers or clues on how or where to use them, these items are likely rotting away in your inventory.

This guide covers all the Purified Essences in Diablo 4 as well as the things you need to do in order to reveal the secret related to them.

heir of perdition on a black backgroup, tree of whispers interposed behind
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How to Use Purified Boss Essences in Diablo 4

D4 Andariel Altar Season 11
Diablo 4 Andariel Altar Season 11

Beating any of the Lesser Evils during Season 11 may cause them to drop Purified Essences, which are essentially parts of the bosses themselves. Such items include:

  • Purified Horn of Duriel
  • Purified Eye of Belial
  • Purified Claw of Andariel
  • Purified Tongue of Azmodan

Unlike their Corrupted versions, which can be used to get rewards after beating Azmodan in Hawezar, Purified Essences aren't used for claiming rewards or summoning bosses. Instead, players can use them to open a portal that leads to a secret meeting place for the four Lesser Evils featured in Season 11. To do this, you need to find boss altars that are hidden across Sanctuary.

Altar of Anguish (Andariel)

D4 Altar of Anguish location
Diablo 4 Altar of Anguish location

Andariel's altar is found inside a cave near the edge of a waterfall northwest of the Kurast Bazaar and the Kurast Docks waypoints.

Altar of Pain (Duriel)

D4 Altar of Pain location
Diablo 4 Altar of Pain location

Duriel's altar is near a cliff edge overlooking Caldeum. The closest waypoint here is the one in Deshar, which is found southeast of the altar.

Altar of Lies

D4 Altar of Lies location
Diablo 4 Altar of Lies location

Belial's altar is in the Fractured Peaks. From the Bear Tribe Refuge waypoint, ride east until you reach the Zenith dungeon. Head further east from the dungeon's entrance to find the altar near the edge of the cliff.

Altar of Sin

D4 Altar of Sin location
Diablo 4 Altar of Sin location

Azmodan's altar is in the Hawezar region. From Zarbinzet, head northeast until you reach a bridge leading to the Lost City of Ureh. The altar should be at the northen edge of the small island between the rope bridges.

What Next?

Once you offer a Purified Essence to each of the altars, a portal should appear. Enter it, and you'll find yourself in a two-part boss fight against Andariel, Azmodan, Belial, and Duriel. You'll fight two of them at a time, though, so no need to worry about getting overwhelmed by all four of them.

Beating these bosses in this secret encounter will reward you with the following:

  • 1 Tribute of Ascendance
  • 1 Resplendent Sparks
  • Runes and Unique Items
  • Shield Crest of Exile mount trophy
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Diablo 4 Tag Page Cover Art
Diablo 4
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9 /10
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Released
June 5, 2023
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WHERE TO PLAY

SUBSCRIPTION
DIGITAL
Checkbox: control the expandable behavior of the extra info

ESRB
Mature 17+ / Blood and Gore, Intense Violence, Language, In-Game Purchases, Users Interact
Developer(s)
Blizzard
Publisher(s)
Blizzard
Multiplayer
Online Multiplayer, Online Co-Op, Local Co-Op
Cross-Platform Play
All platforms
Cross Save
All platforms
Prequel(s)
Diablo 3
Franchise
Diablo
Number of Players
1-2 players
Steam Deck Compatibility
Verified
PC Release Date
June 5, 2023
Xbox Series X|S Release Date
June 5, 2023
PS5 Release Date
June 5, 2023
Genre(s)
Action RPG, Hack and Slash
OpenCritic Rating
Mighty
Local Co-Op Support
1-2 players (console only)
How Long To Beat
26 Hours
X|S Optimized
Yes
File Size Xbox Series
158.25 GB
PS Plus Availability
N/A