What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Hell is Us

Lethe - National Library 100% Completion Guide

Add to Watchlist

★ Trending: Puzzles | Codes | Jeljin | NG+
☆ Starting out? Check our Beginner's Guide
┗ Combat | Builds | Weapons | Tier List
★ Walkthrough | Good Deeds | Mysteries
┗ Timeloops | Vaults | NPCs | Enemies
☆ Missables | Game Length | Trophies

Hell is Us - National Library Guide
Lethe - National Library is a main location in Hell Is Us. Find out more about Lethe - National Library's Good Deeds, Mysteries, puzzles, Vault of Forbidden Knowledge, important loots, Timeloops, NPCs, and a Walkthrough for the Lethe - National Library here!

List of Contents

Lethe - National Library Walkthrough

1. Get the Gospel of Teaar During Searching for the Keystone of Ecstasy

Step Objective
1.1
Hell is Us - Entrance
After speaking with Abbot Jaffer in the Pathem Abbey, Travel to the Lethe - National Library via the APC. Enter the building and go up the stairs. Go through the door that says Second Floor and follow the path to the left.
1.2
Hell is Us - Staff Room
Take the stairs down. Then find the stairs in front of a vending machine and go back up. There will be a save point there and the entrance to the Staff Room.
1.3
Hell is Us -Speak to Iblis
Enter the Staff Room and speak with the Stoned Man, Iblis, exhaust his dialogue options to get the clue on how to access the Restoration Room and the Keys - Lethe National Library.
1.4
Hell is Us - Get the Clue
Go back down the stairs and go into the door beside it. At the end of the hall will be a set of locked glass doors. You can see Locke's body through the glass with a Feral Walker standing over it. Open the door and defeat the walker.

Grab the clue from Locke's body. You can find the code by dropping down from the hole in the room where the helicopter is and collecting the scattered books. It is 537 from Historical Lethe - City of Wonder and 734 from The Loblina Alliance. There is also a note by the "Employee Only" room nearby that's related to the Conspiracy mystery.
1.5
Hell is Us - To the Restoration Room
After getting the books, you can pass through the locked door where Locke's body is and cross to the next room. Enter the doorway with the Book Restoration sign and go downstairs to find the Book Restoration Office.

You can also head inside Embry Hall and examine one of the computers inside related to the Suspicious Activity mystery.
1.6
Hell is Us - Book Restoration Room
Unlock the door using the code 537 734 and collect the Gospel of Teaar and the Twin-Headed Serpent. Return to the APC and speak with Tania about the Gospel of Teaar. Travel to Vyssa Hills after that.

You can also grab the Note - Favors Owed in the Restoration Room. This is related to the Good Deed A Way Out.

Searching for the Keystone of Ecstasy Walkthrough

Lethe - National Library Quests

Lethe - National Library Good Deeds

✔️ Items Details
A Way OutA Way Out Rewards:
Signet Ring of Ecstasy - Stimulation Signet Ring of Ecstasy - Stimulation


All Good Deeds Guide

Lethe - National Library Mysteries

✔️ Items Details
Suspicious ActivitySuspicious Activity Rewards:
Pottery Fragment Pottery Fragment
Cap - Ecstasy Cap - Ecstasy
The ConspiracyThe Conspiracy Rewards:
• No Rewards


All Mystery Solutions and Locations

Lethe - National Library Puzzles and Codes

Lethe - National Library Puzzle Solutions

✔️ Puzzle How to Solve
Lethe - National Library Locked Computer Puzzle Location: Lethe - National Library
Mystery: The Conspiracy
Solution: Take the numbers taken from the tracts to input the passcode to the computer: 731596.


All Puzzle Solutions

Lethe - National Library Codes

✔️ Code How to Solve
The Conspiracy - The Computer inside Computer Room D
The Conspiracy		 This is the code to the computer found in Computer Room D of Lethe - National Library.
Code: 731596
Act 2 - Book Restoration Office
Lethe - National Library Book Restoration Office Door Code		 This is the code to the Book Restoration Office in Lethe - National Museum.
Code: 537734
Suspicious Activity - Door to the Staff Room near the Loading Docks
Suspicious Activity		 This is the code to the Staff Room near the Loading Docks area in Lethe - National Library.
Code: 5055
History Lesson - Safe found a dumpster near the APC
History Lesson		 This is the code to the safe found in a dumpster near the APC's location in Lethe - National Library.
Code: 81643

All Codes Guide

Lethe - National Library Important Loot

Lethe - National Library Exploration Items

✔️ Item How to Get
Keys - Car (Lethe)Keys - Car (Lethe)
Exploration Item
Found in a locket at the National Library, Lethe. Used to Unlock a Parked Car.
Note - BlackmailedNote - Blackmailed
Exploration Item
Found in a locker at the National Library, Lethe.
Note - Cryptic Clue (National Library)Note - Cryptic Clue (National Library)
Exploration Item
Found in the shipping docks at the National Library, Lethe. Part of the access code to be used in Computer Room D at Lethe National Library.
OMSIF Deployment Order - National LibraryOMSIF Deployment Order - National Library
Exploration Item
Found in the National Library, Lethe. Used as a hint to


List of All Exploration Items

Lethe - National LIbrary Research Items

✔️ Item How to Get
Pottery FragmentPottery Fragment
Research Item
Found inside the trunk of a blue car at Lethe National Library.
Wooden Mask
Research Item
Found in a safe at Lethe - National Library.

List of All Research Items

Lethe - National Library Investigation Items

✔️ Item How to Get
Gospel of TeaarGospel of Teaar
Investigation Item
Found in the book restorer's office at the Lethe National Library.
Historical Lethe - City of WonderHistorical Lethe - City of Wonder
Investigation Item
Found in the National Library.
Lady Marguerith: Scandal and SteelLady Marguerith: Scandal and Steel
Investigation Item
Found in the National Library. Used to solve the passcode in the Book Restoration Office
Note - Keycode ReminderNote - Keycode Reminder
Investigation Item
Found on a Locke's corpse in the Lethe National Library Gives a Clue for Restoration Office Code
The Loblina AllianceThe Loblina Alliance
Investigation Item
Found in the National Library.
The Quill and the Pyre: The Legacy of Sabin GauThe Quill and the Pyre: The Legacy of Sabin Gau
Investigation Item
Found in the National Library in Lethe. Used to solve the passcode in the Book Restoration Office

List of All Investigation Items

Lethe - National Library Points of Interests

Lethe - National Library Vaults

There is no Vault of Forbidden Knowledge in Lethe - National Library

List of All Vaults

Lethe - National Library Timeloops

There are no Timeloops in Lethe - National Library

All Timeloop and Guardian Locations

Lethe - National Library NPCs

Character Location Investigations/ Good Deeds
Agathe TerraAgathe Terra She is standing in front of the Restoration Room in Lethe - National Library Good Deeds:
• A Way Out
IblisIblis You can find him stoned in the Library Staff Room. Investigations:
• Searching for the Keystone of Ecstasy
LockeLocke You will find his corpse behind a locked door near the cafeteria. Investigations:
• Searching for the Keystone of Ecstasy

List of All NPCs

Lethe - National Library Summary

Location Overview

World Map In-Game Map
Hell is Us - National Library World Map
Hell is Us - National Library in-Game
Related Investigations Zones
Act 2
・Searching for the Keystone of Ecstasy 		・Book Restoration Department
Threat Level
I & II
Description
A grand public library, housing vast archives and serving as the country's foremost center of knowledge.

Hell is Us Related Guides

Hell is Us- Walkthrough Partial

Story Walkthrough and List of All Acts

Complete Walkthrough

Act Investigation
Act 1 • Family Reunion
• Family Legacy
Act 2 • Searching for the Keystone of Terror
• Searching for the Keystone of Rage
• Searching for the Keystone of Ecstasy
Act 3 • Into the Unknown

100% Location Completion Guide

List of All Locations
Senedra Forest Acasa Marshes Vyssa Hills
Lake Cynon Lethe - National Library Plains of Mist
Marastan Talju Lethe - Ministry of Cultural Primacy
Jeljin Auriga Museum -
Sub-Areas
Watcher's Nest

Comment

Post (0 Comments)

Author

Hell is Us Walkthrough Team
This article was created by Game8's elite team of writers and gamers.
    Leave feedback(Login required)
    Tell Us More About You!

    Rankings

    Popular Articles
    Message Board
    • We could not find the message board you were looking for.

    Gaming News

    2XKO Review [Closed Beta] | Riot Games Finally Steps Into The Ring

    2XKO Review [Closed Beta]

    Popular Games

    Recommended Games

    All rights reserved

    ©2025 – Nacon

    The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
    The contents we provide on this site were created personally by members of the Game8 editorial department.
    We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.

    Hell is Us Walkthrough & Guides Wiki

    Quick Access
    Guide Index

    Recommended Guides

    Walkthrough

    Act 1 Investigations

    Act 2 Investigations

    Act 3 Investigations

    Puzzles

    Mysteries

    All Mysteries

    Lymbic Doors and Chests

    Good Deeds

    All Good Deeds

    NPCs

    Weapons

    Weapon Types

    All Swords

    All Twin Axes

    All Polearms

    All Greatswords

    Vaults

    Enemies

    Bosses

    Relics

    Relics by Type

    Active Relics

    Passive Relics

    Items

    Item Types

    Defensive Gear

    All Defensive Gear

    Glyphs

    Glyph by Rank

    Base Glyphs

    Enhanced Glyphs

    Elite Glyphs

    Drone Modules

    All Drone Modules

    Cosmetics

    Latest News and Game Info