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Queen's Domain Trident: Location and the Four Trident Keys

Where the trident waits outside Obmuer Temple, how maxing its weapon level breaks off a trident key, and where the other three trident keys come from.

11/12/2026 Last updated: 11/12/2026

Where the trident is

The trident lies in the skeleton-filled main area of the watery ruins outside Obmuer Temple. A community route video refers to the same building as “Obelbiar Temple”; the temple’s name in this guide is Obmuer Temple.

You reach those ruins after obtaining the Holy Sword of Endu and a second Wind Gem, which gives you two air dashes. Cross the broken bridge leading into the water area, then explore the main section occupied by several skeletons. The trident is in that main area.

Use the triangular slate hunt to orient yourself:

  • The trident is in the main area with several skeletons.
  • From that area, dropping down and heading toward the western corner leads to one of the four triangular slates.
  • The slates open the temple entrance; the trident keys operate puzzles inside.

Pick the weapon up while you are collecting the entrance pieces so you can work toward its key unlock during the rest of your adventure.

Unconfirmed — The route video says the trident sits in the “main area with several skeletons” where you loot it, but it does not give a precise map marker or a drop chance for the weapon.

Getting the key from the weapon

Raise the trident to maximum weapon level. A piece then breaks off, giving you a trident key for the temple’s optional puzzles.

Keep the weapon’s level separate from your character level when checking your progress; the unlock depends on maxing out the trident itself.

When fighting with it, let the yellow Power Meter refill between attacks. Melee damage depends heavily on that meter, and repeatedly swinging while it is empty produces very little damage. Stop sprinting before attacking so the meter can recover, and check the weapon’s inventory description for its damage types rather than judging by its appearance.

Unconfirmed — Version 1.01.01 is described as fixing a freeze that occurs when weapons evolve, but only one community source states this, and the patch itself is not linked from our materials.

The four trident keys

Two keys are inside the temple, one comes from the max-level weapon, and one becomes available in the shop after defeating the Tower of Knowledge boss, the Necronomicon. Searching the temple alone leaves you short of the four needed for certain optional puzzles.

KeyHow to obtain it
Temple entrance keyDrop into the watery area near the temple entrance.
Skeleton ambush keyFrom the second save point, air dash into the opening lower down in the large pit, then explore the area where skeletons ambush you.
Trident weapon keyRaise the trident found outside the temple to maximum level.
Shop keyPurchase it after defeating the Necronomicon in the Tower of Knowledge.

Use the entrance key to advance toward the second save point. The route through the lower wall opening leads toward the second key and another Wind Gem. That gem brings your total to three air dashes, allowing you to cross the large pit near the save point.

The temple involves moving keys between locks. Retrieve and reposition them as you work through its doors instead of assuming every empty socket needs a newly discovered key.

Unconfirmed — The rule that a key can be moved from one lock to another is stated by one guide and by a translation of the same guide; the game’s own behaviour for repeated sockets is not separately verified here.

For the shop key, continue through the Tower of Knowledge and defeat the Necronomicon. Boss-earned duck figurines expand the shop’s inventory, so revisit the shop after that fight.

The multi-key room

Near the temple’s third save point you reach a room containing several trident keyholes. The additional keys are for optional loot; you only need the two temple keys to finish the dungeon.

Leave the four-key puzzles for a return trip if you have not maxed out the weapon or completed the Tower of Knowledge.

After the guards

Continue from the save room into the large cavern and defeat the three royal guard sub-bosses. Their defeat opens the door leading to Dagoom the Sea King, the sea king.

Saving before detours

Save at a Crystal Monument before leaving on a long detour. Saving is manual, and dying sends you back to your latest save, including any weapon progress and pickups recorded there.

Unconfirmed — The claim that a death returns you to your latest save with the weapon progress recorded at that save is stated by one guide; our sources do not document exactly which inventory entries a Crystal Monument snapshot preserves.

Cross-reference: the Petrified Garden fountain

The trident weapon key is one of the keys the fountain puzzle in the Petrified Garden expects: five creature statues each hold a coloured gem, and those gems tell you which trident key goes in which slot on the fountain, so filling all five wakes the garden.

Unconfirmed — The five-statue fountain puzzle is described in a separate statues guide and not in the trident guide itself, so the exact key-to-slot mapping is not confirmed by the trident sources.

Sources

trident trident-key obmuer-temple weapon-level weapons tower-of-knowledge

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