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Everything you need to know about the Book Restoration puzzle in Hell Is Us, including its location, how to unlock it, and more.
Hell Is Us features some genuinely tricky puzzles, some of them as challenging as those in The Talos Principle games. One such puzzle is the Book Restoration room. You reach this location after completing Act 1 of the main story and choosing the Keystone of Ecstasy path.
During your investigation, you’re given clues about the Lethe National Library, which houses information on the Keystone of Ecstasy. However, before you can gather the clues to your next objective, you need to unlock the Book Restoration room. And much like other puzzles in Hell Is Us, unlocking Book Restoration isn’t particularly easy.
To do so, you need to find the right combination of codes, which you can enter on the keypad locking the room. Here’s a comprehensive guide on how to unlock the Book Restoration room in Hell Is Us.
Also Read: Hell Is Us: How To Unlock Pentos Algea’s Tomb (Watcher’s Nest)
Where To Find the Book Restoration Room in Hell Is Us?
You will find the Book Restoration Room in the basement of the Lethe National Library. However, to unlock the National Library, first talk to Abbot Jaffer at Pathem Abbey, Acasa Marshes. You can find the Abbot inside a cave to the east of the Acasa Marshes, close to the second Timeloop.
After talking to the Abbot, you will unlock the Lethe National Library. Once you reach the National Library, simply make your way through it, and you will eventually reach the basement. Furthermore, you can also gather clues about the basement from NPCs on the upper floors of the Library.
From the basement, you need to head to the upper floors again to get clues on the keypad’s combination. On your way to the Embry, you will meet an NPC named Iblis, who will give you the Library Key. With the Library Key, you will be able to unlock the door blocking the central path between the hallway leading to the Embry and the one leading to the basement.
Furthermore, within the Embry, you will find the solution to the keypad that locks the Book Restoration room.
Also Read: Hell Is Us: All Safe Codes
How To Unlock Book Restoration in Hell Is Us
To get the codes for the Book Restoration room, you need to head inside the Embry. To do so, start on the first floor of the building and make your way to the room with a broken floor and ceiling. This room is directly above the Embry. Using the broken floor, you can jump down to reach the Embry and obtain clues for the puzzle.
Note that the Embry houses a few Hollow Walkers as well. After you defeat the enemies, look for the yellow-colored pickups. You need to find two books, one on the foundation of Lethe and the other on the creation of the Loblina Alliance.
Furthermore, before you reach the Embry, you will pick up a note containing the following clue:
Restoration Office code:
Embry has the answer
- Lethe foundation
- Loblina Alliance creation
Essentially, you need to arrange the dates of Lethe’s foundation and the Loblina Alliance’s creation to form the code for the keypad. Lethe’s foundation date is 537 AD, and the Loblina Alliance’s creation date is 734 AD. As such, the code for the keypad is 537734.
Using this code, you will unlock the Book Restoration room and obtain the Twin-Headed Serpent and the Gospel of Teaar. From there, you need to take the Twin-Headed Serpent back to Vyssa Hills and use it to unlock a hidden chamber.
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