Unlock the Kurast Undercity by Diablo 4 Gold completing the following two quests:

    The Kurast Undercity

    Undercity: Wail of the Forgotten

Once unlocked, enter the Undercity and face the Terror of Five Hills. This formidable boss resides deep within the zone. Defeat it to progress to the next stage.

Step 4: Tree of Whispers

Gather 10 Grim Favors by completing objectives for the Tree of Whispers. These tasks often involve slaying monsters, completing events, or tackling dungeons in Nahantu. Once you've collected the Grim Favors, return to the Tree to claim your reward.

This step is an excellent opportunity to earn Diablo 4 Gold and other rare Diablo 4 Items, which can significantly enhance your character.