Where it is
Area order: Endu → Obmuer Temple → Dagoom the Sea King → Tower of Knowledge. The Storm Gem is in the Tower, before you fight The Necronomicon (walkthrough step 13).
| Area | Tower of Knowledge (30.4% of players had reached it, Nov 2) |
| Video | Gamer Guides 6:33 · Indie James from 3:13:26 |
| Achievement | Raging Tempest — “Recover the Storm Gem” — 22.8% |
What it does
- Unlocks the ultimate attack of the Holy Sword Endu (TechRaptor).
- Listed in one player’s route to the True Holy Sword Akunra, together with all five Wind Gems and a level-10 Soul Bound Endu ⚠️.
The Storm Gem and the Wind Gems are different: Wind Gems add air dashes (five of them), the Storm Gem adds the ultimate.
Next
Beat The Necronomicon in the same tower, then head for Deimpo Mausoleum.