All five Trident Keys and what they open
Queen’s Domain has five Trident Keys. Two are in Obmuer Temple, one comes from levelling the Trident weapon to 5, one is sold by Umbada after the Golden Duck Figurine, and the last drops from Lost King Ojjama in the Petrified Garden.

Locations
| Key | Where | When you can get it |
|---|---|---|
| Sapphire | Wall of the first flooded cavern in Obmuer Temple | On the first visit |
| Emerald | A rock near the skeleton spawn in Obmuer Temple | On the first visit |
| Ruby | Breaks off the Trident when the weapon reaches level 5 | Any time after you take the Trident from the wall outside the temple |
| Amethyst | Umbada’s shop after you hand over the Golden Duck Figurine | After the Necronomicon |
| Onyx | Dropped by Lost King Ojjama in the Petrified Garden; fly from the Garden Wing Altar to the round platform opposite | Late game |
What they open
| Door | Keys needed | Behind it |
|---|---|---|
| Three-key gate in the first flooded chamber of Obmuer Temple | Three | Engraved Halberd |
| Five-slot inner door near the Knight’s Encampment, behind a hidden wall | All five | The White Tree Guardian |
| Colour-matched statues in the Petrified Garden | All five | The skull door and the garden ritual |
The Ruby key needs the Trident at level 5, so equip it while you clear Obmuer Temple. Keys placed in the garden statues remain in your inventory as Hollow Trident Keys.
Sources
- Gaming Deputy (French), Trident et 5 clésAll five keys and the Petrified Garden statues.
- Whisper of the House, Obmuer Temple walkthroughSapphire and Emerald keys, the three-key gate and the Amethyst key in the shop.
- Destructoid, all weapons and how to find themTrident location and the Engraved Halberd chest.
- Output Lag, Queen's Domain bosses in orderWhite Tree Guardian behind the five-key door.
- Steam discussion, completion item listsKey list including the Hollow Trident Keys left after the garden.
