The Adamant Isle Grotto (アダマンとうのどうくつ, Adamanto no Doukutsu?), also known as Adamant Grotto and Adamant, is a location in Final Fantasy IV and Final Fantasy IV: The After Years. In Final Fantasy IV, it can only be reached using the Hovercraft after landing near Mythril. A family of Small People live there, and the father collects tails.
The father will award Cecil with the Adamantite ore if brought a Rat Tail. This can then be taken to Kokkol's house with the Mythgraven Blade and refined into the Excalibur. After bringing him the Pink Tail dropped from rare enemies known as Flan Princesses, he will give the Adamant Armor.
In the 3D versions, powerful enemies such as the Red Dragon have a slim chance of dropping additional tails, which may be brought to the man at the Grotto for additional Onion equipment:
- Red Tail - dropped from Red Dragon; trade for Onion Sword.
- Green Tail - dropped from Green Dragon; trade for Onion Helm.
- Blue Tail - dropped from Thunder Dragon; trade for Onion Shield.
- Black Tail - dropped from Armored Fiend; trade for Onion Armor.
- Yellow Tail - dropped from Yellow Dragon; trade for Onion Gauntlets.
In Final Fantasy IV: The After Years, the cave appears connected by land to Mythril, and is the first dungeon of the game.
Final Fantasy IV: The After YearsEdit
17 years after the events of Final Fantasy IV, the cave appears connected by land to Mythril and is much larger, no longer being home to the tail collectors. Biggs and Wedge accompany Ceodore here, and Ceodore must brave the trials of the cave alone to claim his proof of knighthood.
- Potion x2
- Ether x2
- Phoenix Down x2
- Tent x3
- Bomb Fragment
- Eye Drops
- Bronze Hourglass
- Antarctic Wind
- Echo Herbs
- Iron Gloves
- Sand Worm (Boss)
The background music that plays inside the Adamant Isle Grotto is the Final Fantasy IV "Dungeon" theme.
Adamantite and similar words including Adamant and Adamantine are used to refer to any especially hard substance, whether composed of diamond, some other gemstone, or some type of metal.