Secrets of the Vault is the 21st main mission in Borderlands 4 (BL4). This walkthrough will guide you through all objectives of the Secrets of the Vault Main Quest.
- Starting Location: Kairos > Dominion > Upper Dominion
- Quest Giver: Lilith
- Unlock Requirement: having finished Main Quest 20: The Timekeeper’s Order
- Recommended Level: 35
- Reward: None
- Quest Description: You did it. The Timekeeper is dead. Now to see what’s inside the Vault he spent thousands of years guarding…
Objectives:
- Enter Vault
- Defeat Arjay
- Speak to Lilith & Optional Objective: Loot chests
- Explore Vault
- Take object
- Return to Moxxi’s bar
Starting Location: Secrets of the Vault
Enter Vault
Just enter the vault to trigger a cutscene.
Defeat Arjay
After the cutscene, a fight against Arjay will start. Watch out for the red twisters, as they do a lot of damage.
Speak to Lilith & Optional Objective: Loot chests
After the fight, you will be teleported to Lilith. Before talking to her, open up all chests to finish the optional objective.
Now you can talk to Lilith.
Explore Vault
Follow Lilith over the platforms until she stops. The conversation will start, and you just have to wait for it to finish.
Take object
After the conversation, just pick up the object from Lilith.
Return to Moxxi’s bar
Now enter the rift behind Lilith to reach Moxxi’s bar.
This finishes Secrets of the Vault in Borderlands 4.
NEXT: Ultimate Vault Hunter: Zane’s Firmware
For all other Quests refer to our complete Borderlands 4 Walkthrough.











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