Triple Seal Gate
Level 50 three-key gate before the late-game spire path; tied to Ruby Key, Sapphire Key, and Emerald Key progression.
What This Is
Section titled “What This Is”Triple Seal Vault: This is the Level 50 gate before the World Spire route. It is not a normal mountain reward page: it checks whether you kept the three magical key artifacts.
Progression Role
Section titled “Progression Role”| Level / trigger | Level 50 key gate |
|---|---|
| What it checks | Ruby Key, Sapphire Key, and Emerald Key. |
| If you have them | The mithril vault opens and awards The Nauglamir, a Great World Spire artifact worth +6 PP. |
| If you do not | The gate stays shut. Drills and bombs do not bypass it, so the practical answer is to collect the keys before coming back. |
| Player takeaway | Do not dismiss the Ruby Key, Sapphire Key, and Emerald Key as flavor artifacts. They are the gate pieces for the late-game artifact chain. |
Key Items
Section titled “Key Items”| Role | Item | Use |
|---|---|---|
| Key | Ruby Key | One of the three required vault keys. |
| Key | Sapphire Key | One of the three required vault keys. |
| Key | Emerald Key | One of the three required vault keys. |
| Reward | The Nauglamir | The artifact inside the vault; also required later for the Great World Spire. |