The Cathedral Complex locked door key in The Blood of Dawnwalker is one of those things that trips people up because the answer is hiding in plain sight. There is a note pinned right next to the door telling you where to look — but if you missed it, this guide will walk you through exactly where the Library Key is, how to get inside without it, and what you will find once the door is open.
- TL;DR
- The locked door leads to the Cathedral Complex library in the northeastern garden of the Cathedral Complex in Svartrau City.
- A note pinned next to the locked door gives you the hint — the key is inside the library itself.
- You can enter the library without the key using Shadowstep and Clawride at night, or through the northeastern doors during the day.
- Once inside, go to the first floor, walk to the locked door, turn right, and grab the Library Key from the book stand.
- The library contains lore books and randomized skill manuals — loot every bookcase.
Where Is the Cathedral Complex Library?
The Cathedral Complex library is tucked inside the northeastern garden of the Cathedral Complex in Svartrau City. It sits behind a locked door that you will find as you explore the garden area. Many players spot the door early but cannot figure out how to open it, especially when they first arrive in Svartrau.
There is a note pinned right next to the locked door. It is easy to walk past without reading it. That note tells you the Library Key is already inside — you just need to find a way in first. The door cannot be opened from the outside without the key, so you have to enter the library another way to collect the key, and then you can use it to unlock the front door for quick access going forward.
The Cathedral Complex sits in Svartrau City, which is also the area where a lot of late-game content is concentrated. If you are still making your way through earlier regions, check out our Blood of Dawnwalker prologue walkthrough to make sure you covered the early game before diving into the city.
How to Reach the Cathedral Complex Garden
Getting to the garden depends on whether it is day or night in the game. The Cathedral Complex doors behave differently depending on the time of day.
During the Day
This is the easier option. During daytime, the main doors of the Cathedral Complex are unlocked and open to visitors. Simply enter the Cathedral Complex through the front and then exit through the northeastern doors to reach the garden directly. No special abilities needed.
During the Night
At night, the main doors are locked and Xanthe — one of the three vampiric vassals — may be present near the cathedral area. Getting caught by her before you are ready can trigger a boss fight at an awkward time. There are two ways to reach the garden at night without using the main doors:
Option A — Via the Scouting Tower: Climb the Cathedral Complex Scouting Tower and use the Clawride ability to slide down from the northern edge into the garden.
Option B — Via the Blacksmith:
- Fast travel to the Svartrau North East Shrine.
- Move toward the Blacksmith in the Cathedral Complex area.
- Head behind the Blacksmith building.
- Enter the southeastern metal gate.
- Use Shadowstep to reach the roof.
- Jump down into the garden.
Both routes get you into the garden safely at night without having to go through the main entrance. If your Vampirism skills are not yet unlocked, try to visit during the day instead. Our guide on how to get ability slots in Blood of Dawnwalker can help you unlock Shadowstep if you have not yet done so.

How to Enter the Library Without the Key
Once you are in the garden, you will see the locked library door. You cannot open it yet. You need to get inside through the balcony first. Here is how to do it at night using your vampire movement abilities:
- Go to the library’s location in the garden.
- Use Shadowstep to get up to the roof of the library.
- Jump down to the lower platform on the other side, or use Clawride to slide down the wall safely.
- Use Shadowstep again to reach the library balcony.
- Enter the library through the balcony opening.
During the day, this is much simpler. The balcony door is accessible without needing Shadowstep. Just climb up to the balcony level from the garden side and walk in.
Where Is the Cathedral Complex Library Key?
Once you are inside the library through the balcony, here is exactly what to do:
- Take the stairs down from the balcony to the first floor.
- Walk toward the main locked door from the inside.
- Turn right just before you reach the door.
- Grab the Cathedral Complex Library Key from the book stand sitting there.
That is it. The key was inside the whole time — exactly what the pinned note was hinting at. With the key in hand, you can now unlock the main door and use it as a proper entrance going forward. This saves you from having to use Shadowstep every time you want to return to the library.
What Is Inside the Cathedral Complex Library?
The library is worth exploring thoroughly. It contains lore books and skill manuals spread across multiple bookshelves. Make sure you interact with every bookcase inside before leaving.
Skill Manuals
The exact manuals you find are partially randomized, so your run may be different from someone else’s. However, these are among the manuals that can appear inside the Cathedral Complex library:
- Witchcraft Mastery
- Swordmastery-related manuals
- Other randomized Witchcraft and combat perks
Because the manuals are randomized, it is always worth visiting early to see what is available. If you are planning your skill progression carefully, our guide on the best skills to level up in Blood of Dawnwalker can help you decide which manuals to prioritize when you find them.
Lore Books
The library also contains a good selection of books with in-game lore about Vale Sangora, the Vrakhiri, and the history of the region. These do not affect gameplay directly but add depth to the world. If you enjoy reading the lore, take your time here.
The Cathedral Complex Treasury — A Separate Locked Door
Some players confuse the library with a second locked structure in the same northeastern garden — the Cathedral Treasury. These are two separate locked buildings and they use different keys.
The Cathedral Treasury Key is located inside the Cathedral Complex Belltower, in a northwestern room. During the day you can talk to an Acolyte there to get access, spending 1 hour helping him stack boxes before inspecting a ledger on the table where the key is attached. At night, Xanthe is in the belltower area, which makes the process more dangerous. Getting caught by her triggers an early boss fight.
Inside the Cathedral Treasury you will find valuable items including the Stone Key, the Phial of Xanthe’s Blood (which unlocks the Blood Surge vampirism ability), silver valuables you can sell, and more. The Stone Key itself is used during the A Hero’s End quest to unlock a hidden coffin inside an Ancient Ruin, rewarding you with the Hand of Fate legendary sword and an Ancient Ring.
So to be clear:
- Library Key — found inside the library through the balcony, on a book stand to the right of the locked door.
- Treasury Key — found in the Cathedral Complex Belltower, via the Acolyte during the day or by sneaking past Xanthe at night.
Tips for Visiting the Cathedral Complex Garden
- Visit during the day if your Vampirism abilities are not yet unlocked. The main doors are open and you will not need Shadowstep or Clawride to navigate the area.
- Avoid triggering Xanthe at night if you are not ready to fight her. Sneak through the southeastern tower route or come back during the day.
- Read the note pinned next to the locked library door. It saves a lot of confusion and tells you the key is inside.
- Loot every bookcase — the skill manuals here are randomized but always useful.
- Grab both keys on the same visit if possible — the Library Key and Treasury Key are both in the same general area and getting them in one trip saves time.
- Time is a resource — if helping the Acolyte costs 1 hour, decide whether that is worth it before committing. Save your game first if you are unsure.
Managing your time well during the Cathedral Complex section pays off. While you are in Svartrau City, the Echoes of Silenced Bells quest is another content-rich activity in the wider area that rewards skill manuals, a strong epic amulet, and opens up Anca’s full questline — well worth doing around the same time.
You can also look at our guide on how to sell silver in Blood of Dawnwalker to make use of the silver valuables you will collect from inside the Cathedral Treasury once you have both keys sorted.
Where to Get The Blood of Dawnwalker
The Blood of Dawnwalker is available now on PC via Steam, PlayStation 5, and Xbox Series X/S. It is developed by Rebel Wolves and published by Bandai Namco Entertainment.
Frequently Asked Questions
Where is the Cathedral Complex Library Key in The Blood of Dawnwalker?
The Library Key is inside the library itself, on a book stand to the right of the locked main door. You have to enter through the balcony first — either by using Shadowstep at night or climbing up from the garden during the day — then take the stairs down to the first floor, walk toward the locked door, turn right, and pick up the key from the stand.
How do you get into the Cathedral Complex library without the key?
During the day, enter the Cathedral Complex through the main doors and exit through the northeastern doors into the garden, then climb up to the balcony. At night, fast travel to the Svartrau North East Shrine, head behind the Blacksmith, enter the southeastern metal gate, use Shadowstep to reach the roof, jump down to the garden, then use Shadowstep again to reach the library balcony.
Is the Cathedral Complex Library Key the same as the Treasury Key?
No, they are two separate keys. The Library Key is found inside the library on a book stand. The Treasury Key is found in the Cathedral Complex Belltower — either from an Acolyte during the day after spending 1 hour helping him, or by sneaking past Xanthe at night. Both buildings are in the northeastern garden but they are different structures with different keys.
What do you find inside the Cathedral Complex library?
The library contains lore books and randomized skill manuals across multiple bookshelves. Possible manuals include Witchcraft Mastery and other Swordmastery and Witchcraft perks. The exact manuals vary between playthroughs, so interact with every bookcase to collect whatever is available on your run.