As a professional Genshin Impact player, I recently delved into the enigmatic Faded Castle region during my 2025 adventures, uncovering the hidden mysteries of the Lost Grimoires and their corresponding Bookshelves. 😊 This area, unlocked through the world quest "The Hall of the Sea King" from the Nostoi Region teleport point, is teeming with secrets that reward travelers with precious chests, Hydroculi, and even rare items like Claymore billets. Navigating the castle requires unlocking all teleport waypoints first, and I found that using the symphony power to freeze and capture the elusive Grimoires added a thrilling layer to the exploration. The journey was both challenging and rewarding, with each discovery revealing more about the lore of this ancient place. 💎 Now, let me guide you through my firsthand experience of locating all eight Grimoires and eight Bookshelves, complete with tips to make your hunt smoother in the current game version.
Finding the Lost Grimoires
In the Faded Castle, there are eight Lost Grimoires scattered about, and capturing them involves spotting them mid-flight and using your symphony power to immobilize them before grabbing them. I recommend starting from the entrance teleport waypoint for easy access. Here's a detailed breakdown of each location based on my explorations:
- Grimoire One: This is the simplest to find, as it's often encountered during the main quest. From the Faded Castle entrance, I ran straight through the hallway to the end, climbed the stairs on my left, and entered a room with a cat on a chair. Using the symphony power in front of the bookshelf froze the Grimoire for easy capture.

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Grimoire Two: Starting from Grimoire One's spot, I continued up the stairs. The Grimoire was flying right in the hallway, making it visible almost immediately. A quick symphony blast stopped it in its tracks.
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Grimoire Three: After grabbing the second one, I turned around and went down the stairs to the left. Spiraling downward, I spotted this Grimoire hovering nearby. It was a straightforward find, but watch out for enemies!
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Grimoire Four: From Grimoire Three's location, I faced the water pool and ascended the stairs on my left. At the top, a small room held the Grimoire, waiting to be frozen and collected.
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Grimoire Five: I teleported to the waypoint near the Faded Castle's theater, turned around, and went left into a room. Ignoring nearby foes, I followed the path straight to a seating area where the Grimoire sat at the front. Easy peasy with a symphony zap! 😄

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Grimoire Six: Starting from Grimoire Five, I spotted stairs nearby and ran up them. At the dead end, the sixth Grimoire was just sitting there—no chase needed this time.
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Grimoire Seven: This one felt well-hidden! From Grimoire Six's spot, I jumped down from the balcony and interacted with a Hydro switch. Triangular platforms spawned, and I boarded them to ride directly to the Grimoire. Patience paid off here.

- Grimoire Eight: For the final one, I teleported back to the entrance, ran through the hallway to the split paths, and took the underground route. A navigation challenge led me straight to the Grimoire, capping off the collection with a satisfying finish.
Locating the Bookshelves
The Bookshelves are scattered throughout the Faded Castle and are easier to spot than the Grimoires, but unlocking them with a Grimoire guides you to secret rooms filled with treasures. Each room offers rewards like chests, Hydroculi, or lore items. Here's how I found all eight:
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Bookshelf One: Right at the entrance, I ran straight into the hallway and saw books flying in the air. The bookshelf glowed blue nearby. Inside, I defeated a weak Golem for a precious chest and found a notebook detailing the castle's lore—fascinating stuff! 📖
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Bookshelf Two: I navigated using the "Cat" icon on the mini-map, which led me straight to it. The secret room contained an exquisite chest and a hidden Hydroculus, making it a quick win.

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Bookshelf Three: From Bookshelf Two, I ran up the stairs in front, took a sharp right turn at the top, and found hidden stairs leading up. The room inside had a remarkable chest and a stone golem to fight—be prepared!
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Bookshelf Four: After reaching Bookshelf Three's balcony, I jumped down and flew toward the pool. Alternatively, teleporting to the theater room and heading to the pool works too. The bookshelf was unmissable.

- Bookshelf Five: Continuing along the path, I entered a room full of books (near Grimoire Five's spot). The secret room was massive, with two treasure chests, a Claymore billet, and three Golems to defeat—worth the effort! 💪

- Bookshelf Six: Exiting Bookshelf Five's secret room, this bookshelf was right in front of me. The room inside held an exquisite chest—simple and sweet.

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Bookshelf Seven: I went up the library floors to the top, where this bookshelf stood out. Unlocking it revealed an exquisite chest—no fights needed, just pure reward.
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Bookshelf Eight: Located in the same spot as Grimoire Seven, I activated the Hydro crystal switch and followed the spawning platforms to reach it. The final bookshelf felt like a grand finale to the hunt.
In my 2025 journey through Genshin Impact's Faded Castle, collecting all Grimoires and Bookshelves not only netted me amazing loot but also deepened my appreciation for the game's intricate world-building. 🌊 The symphony mechanic added fun interactivity, and the rewards—like Hydroculi for character progression—make this a must-do for any traveler. Happy exploring, and may your adventures be as thrilling as mine!