Queen's Domain Puzzle Solutions

Tower of Knowledge Library Book Puzzle

The main book puzzle places six books on numbered shelves I to VI in the Tower of Knowledge library — the same room where the dying knight Budaen sits caged next to a wall of flesh. Each book goes on the shelf whose category matches its subject. Slot all six and the Rare Artifact Storage opens, a golden door that players report holds the Crushing Lance. Returning every lost book also pops the I'm Not Paying the Late Fee achievement.

Books like The Ratty Bug Compendium and The End of Epha are lore items that fit no shelf — you do not need them. The storage room you open also holds Wodaso's Embrace, one of the four god books below.

The Second Book Puzzle: Four God Books in the Record of Sin

If you finished the Tower of Knowledge and are searching for the other book puzzle, it is in the Record of Sin library. Four bookcases each have a god's symbol carved above them and one gap on the shelf. Shelve each god's book under its own symbol; the reward is Daji the Grasping, a spear that steals strength from those it pierces.

You need the Tower of Knowledge shelf puzzle finished first, because Wodaso's Embrace is locked inside that storage room.

Trident Key Puzzle

There are five trident keys, and you only need two of them to finish Obmuer Temple. The other three are optional until the late game, when all five become mandatory for the Petrified Garden fountain and the skull door beneath it — part of the Ending 4 route.

Keys can be pulled back out of a lock and reused. Sapphire and Emerald open the temple route; any three of Sapphire, Emerald, Ruby and Amethyst open the three-lock Engraved Halberd gate in Obmuer Temple. All five go into the Petrified Garden fountain, covered below.

Electric Puzzle: The Three Power Towers

In the Ancient World, three blue pyramid towers stand near Siraatsu Castle, and the castle gate stays shut until all three are powered down. Each tower has a node network on top: shooting a node with the Shock Rifle toggles it and every node connected to it, and a node powered twice switches off. Light up every node on all three towers to finish.

Things the game does not tell you:

• You cannot reset a tower. Resting and teleporting do not clear the board, so a wrong sequence has to be worked forward, not undone.
• Player escyth's method: treat the network as T-shaped groups of four and chains of three, and move the one dark node out of a four-group into a chain, where it is easy to finish.
• Towers vary from roughly 13 to more than 16 nodes. Start with whichever looks simplest.
• A console beside each tower lets you pay Ancient Coins to bypass that puzzle. Some players report the gate staying locked after a bypass, so check from outside before assuming a bug: a finished tower has no blue light on it.
• The small puzzle in the lab where you find the rifle is a practice board and does not count.

Shock Rifle Puzzle

The Shock Rifle (players also call it the Electric Rifle) is the gun-type main weapon tracked by the Ancient Technology achievement, and the tool the electric towers are built around. To get it, find the abandoned research lab in the Ancient World, behind the tilted iron plate off one of the area's side routes — jump across to the crooked plate and the lab is behind it. After a tram-track fight inside, the rifle is yours, along with the practice node puzzle in the same lab.

The Shock Rifle deals Absolute damage and is a prerequisite for the three power towers above. One of the Silver Skulls also sits in the tunnel where you find the rifle.

Ceremonial Stone Tiara Puzzle

Above Obmuer Temple, on the clifftop reached from the third beacon (climb the railing on the right and use the Cestus uppercut as an extra jump, then Wind Dash across), four statues stand around a stone floor. Four Ceremonial Stone Tiaras sit nearby — one hides behind a bush, and one is just above the railing by the third beacon, which is the one players usually miss.

Each statue holds red and white flowers, and each tiara carries three flowers. Copy each statue's pattern onto the tiara you place on it, matching left to right:

After the fourth tiara is placed, the floor in the middle breaks open. Drop through into Jigeki's Temple, where the large door takes three Jigeki key pieces (Deimpo Mausoleum spider caves, the Rotting Cavern giant fish, and under the bridge in the Ancient World). The boss behind that door drops Jigeki's Lens, one of the four lenses for the Mask of Second Sight.

Petrified Garden Puzzle: The Five-Statue Fountain

The Petrified Garden's central fountain has five key slots on top of it — easy to miss if you only look at ground level. Five creature statues around the island each carry a colored gem, and together they are the legend for which key goes where: put each trident key in the slot of the creature whose gem matches the key's color.

Hitting the statues does nothing — they are a hint, not a mechanism. Fill all five slots and the garden wakes, which pops the Living Stone achievement. The glowing fish statues around the garden can then be fought: hit each one three or four times and it wakes up (switch weapons if hits do not register) for extra loot and new bestiary entries, which matter for Wourha's research.

The garden also hides two things that feed the late game: the skull door underneath it, where the 69 Strange Silver Etched Skulls are turned in, and the Onyx Trident Key's reported source, the whale boss Lost King Ojjama. You reach the garden by jumping off a warp platform during the teleport animation.

Witch's Grimoire Codes

The Witch's Grimoire is a consumable book hidden in a compartment behind the large tree near the starting beach — walk around the trunk to where it meets the wall and keep pressing E. It starts with three charges, each code spends one, and charges recover over time, on boss kills, and faster once you find the ink in the Record of Sin. Writing any single code unlocks the Witchcraft achievement.

Open your consumables inventory, select the Grimoire, press F as if using a potion, and type a code exactly as written — watch for lookalike characters (B0BARLEY takes a zero, not the letter O). The 33 codes players have found as of November 2026:

Several of these weapons rank among the strongest in the game — see the best weapons tier list for where the Grimoire rewards land.

Other Puzzles Covered Elsewhere on This Site

A few puzzles already have their own pages and are only listed here: the Crypt dagger switch and four Triangular Slates that open Obmuer Temple, the three Azure Torch beacons and the Gargoyle III/VII riddle, and the Deimpo Mausoleum three-torch gate (two levers, then a thrown stone cube at the middle pillar's third block). Full routes are in the walkthrough and map pages; the flesh faces are covered on the flesh faces page.