Melmond town Final Fantasy 1

The Mystic Key & Earth Crystal

Our FF1 Pixel Remaster guide for Chapter 4 covers the Mystic Key treasure hunt, the town of Melmond, the Cavern of Earth, and the defeat of the Fiend of Earth, Lich.

Quick Guide

Key Objectives

  • Use the Mystic Key to gather treasures around the world
  • Obtain the Nitro Powder from Cornelia Castle
  • Use the Nitro Powder in Mount Duergar to open a new sea route
  • Sail to Melmond and learn about the decaying earth
  • Enter the Cavern of Earth and defeat the Vampire to get the Star Ruby
  • Trade the Star Ruby to pass the Giant's Cave and get the Earth Rod
  • Return to the Cavern of Earth to defeat Lich and restore the Earth Crystal

Chapter Bosses (2)

HP: 280
Difficulty: Medium
Rewards:
  • Star Ruby (Key Item)
2 hours Level 12 - 16

Chapter 4 Walkthrough

With the Mystic Key from your adventure in Elfheim, a treasure hunt across the world awaits before tackling the next crystal in your Final Fantasy 1 Pixel Remaster quest. These treasures provide significant power boosts and are essential for the journey ahead.


The Mystic Key Treasure Hunt

Nitro Powder being found in Cornelia after unlocking the mystic key

Your first task is to embark on a treasure hunt, using the Mystic Key to open locked doors in locations both old and new.

  1. Cornelia Castle: Open the two rooms on the first floor. The most important item here is the Nitro Powder, a key item needed to progress.
  2. Chaos Shrine: Open the rooms on the east side to find the powerful Rune Blade.
  3. Mount Duergar (Dwarf Cave): Sail to the cave northwest of Cornelia. Open the large southern room for a haul of treasure, including the Wyrmkiller sword and Mythril Mail. Before you leave, speak to the dwarf named Nerrick in the southernmost passage and give him the Nitro Powder. He will use it to blast a canal, opening a path to the western seas.
Optional Loot

You can also return to the Marsh Cave, Elven Castle, and Western Keep from Chapter 3 to collect other treasures, including the valuable Silver Armlet. It’s worth the trip if you want to be fully equipped.


Journey to Melmond

Sailing through the newly opened canal towards Melmond

Sail your ship back to the newly created canal west of Mount Duergar. This passage leads to the Aldean Sea. Navigate west across this new body of water until you reach the next continent and dock at the port. The town of Melmond is a short walk from here.


Exploring Melmond

The decaying town of Melmond

Melmond is a town in decay. The earth is rotting, buildings are crumbling, and the people are desperate. This is your first direct look at the decay caused by the Fiend of Earth. The town offers powerful Level 5 spells and new equipment.

  • Magic: Life and Curaga for your White Mage are essential purchases. Firaga is a massive damage upgrade for your Black Mage.
  • Armor: The Silver Armlet (4,000 Gil) is an excellent defensive upgrade for any character not in heavy armor. The Knight’s Armor is incredibly strong but prohibitively expensive for now.

The Cavern of Earth - Part 1: The Vampire

The entrance to the Cavern of Earth

After stocking up, head southwest from Melmond to the Cavern of Earth. This dungeon is home to the Fiend of Earth, but your first trip will only take you partway through. Be wary of Cockatrices, whose gaze can petrify your party members.

Navigate through the first two floors, collecting treasure as you go. On the third floor (B3), you’ll find a chamber guarded by a Vampire.

Vampire boss sprite
Boss Fight

Vampire

HP: 280 Medium Level: 14+
Weak to Fire, Dia Cavern of Earth B3

The Vampire is weak to both Fire and Dia magic. Have your Black Mage cast Fira or Firaga, and your White Mage cast Diara. He’ll go down quickly if you exploit these weaknesses. His physical attack can paralyze, so defeat him swiftly.

Upon defeating the Vampire, you’ll receive the Star Ruby. You cannot proceed deeper yet. Exit the cavern.


The Quest for the Earth Rod

Your path forward is blocked, but the Star Ruby is the key.

  1. Giant’s Cave: Travel west from the Cavern of Earth to find a small cave inhabited by a Giant. Give him the Star Ruby. Pleased with the snack, he will clear the path behind him. Loot the treasure room and exit through the back.
  2. Sage’s Cave: Follow the path to another small cave. Inside, the sage Sarda will recognize your deeds and grant you the Earth Rod.
Receiving the Earth Rod from the sage Sarda

The Cavern of Earth - Part 2: The Lich

Confronting Lich, the Fiend of Earth

Return to the Cavern of Earth and make your way back to the Vampire’s chamber on B3. Use the Earth Rod on the stone plate at the back of the room to reveal a staircase to the lower levels.

The final two floors (B4 and B5) are filled with powerful monsters. Conserve your resources for the final battle. At the end of B5, you will find the Earth Crystal and its guardian: Lich, the Fiend of Earth.

Lich boss sprite
Boss Fight

Lich

HP: 1200 Hard Level: 16+
Weak to Fire, Dia Cavern of Earth B5

Lich is the first true Fiend and a powerful spellcaster. He is weak to Fire and Dia. Have your Black Mage spam Firaga while your White Mage casts Diaga and heals with Curaga. The most effective strategy is to cast Haste and stack Temper on your strongest fighter. Lich often casts group-wide ice magic, so NulFrost can be very helpful.


Earth’s Blessing

Upon defeating Lich, the Earth Crystal will be restored to its former glory. The rot will recede from the land. Use the portal behind the altar to exit the dungeon and prepare for your next journey in our Chapter 5 guide.

Shops

Weapons - Melmond

WeaponPriceAttackClasses
Crosier160 Gil 14
WarriorMonk
Saber360 Gil 13
WarriorThiefRed Mage
Longsword1200 Gil 20
WarriorRed Mage
Falchion360 Gil 15
WarriorThiefRed Mage

Armour - Melmond

ArmourPriceDefenseClasses
Knight's Armor36000 Gil 34
Warrior
Silver Armlet4000 Gil 15
All Classes
Great Helm360 Gil 5
Warrior
Bronze Gloves160 Gil 2
Warrior
Steel Gloves600 Gil 4
Warrior

Black Magic - Melmond

SpellPriceLevelClasses
Firaga4000 Gil5
Black MageRed Mage
Scourge4000 Gil5
Black Mage
Teleport4000 Gil5
Slowra4000 Gil5
Black MageRed Mage

White Magic - Melmond

SpellPriceLevelClasses
Curaga4000 Gil5
White MageRed Mage
Life4000 Gil5
White Mage
Diaga4000 Gil5
White Mage
Healra4000 Gil5
White Mage

Enemies

Enemy HP Attack Defense Weaknesses Rewards Location #
Mummy enemy sprite Mummy
80 30 20
Fire Dia
300 EXP
300 Gil
Western Keep 034
Wraith enemy sprite Wraith
86 22 4
Fire Dia
231 EXP
231 Gil
Crosier (5%)
Terra Cavern 035
Anaconda enemy sprite Anaconda
80 22 10
N/A
165 EXP
50 Gil
Marsh Cave 036
Hyenadon enemy sprite Hyenadon
120 22 4
N/A
288 EXP
72 Gil
Melmond Area 037
Lesser Tiger enemy sprite Lesser Tiger
132 22 8
N/A
438 EXP
108 Gil
X-Potion (5%)
Giant's Cave 038
Minotaur enemy sprite Minotaur
164 22 4
N/A
489 EXP
489 Gil
Knife (5%)
Terra Cavern 039
Hill Gigas enemy sprite Hill Gigas
240 38 12
N/A
879 EXP
879 Gil
Tent (5%)
Terra Cavern 040
Earth Elemental enemy sprite Earth Elemental
288 66 20
Fire
1,536 EXP
768 Gil
Remedy (5%)
Terra Cavern 041
Troll enemy sprite Troll
184 24 12
Fire
621 EXP
621 Gil
Terra Cavern 042
Wight enemy sprite Wight
52 20 12
Fire Dia
150 EXP
150 Gil
Terra Cavern 043
Ochre Jelly enemy sprite Ochre Jelly
76 32 6
Lightning
252 EXP
70 Gil
Terra Cavern 044
Cockatrice enemy sprite Cockatrice
50 1 4
N/A
186 EXP
200 Gil
Gold Needle (5%)
Terra Cavern 045
Vampire enemy sprite Vampire
280 76 26
Fire Dia
1,200 EXP
2,000 Gil
Terra Cavern 046
Ogre Mage enemy sprite Ogre Mage
144 23 10
N/A
723 EXP
723 Gil
Eye Drops (5%)
Terra Cavern 047
Sphinx enemy sprite Sphinx
228 23 12
N/A
1,160 EXP
1,160 Gil
Terra Cavern 048
Lich enemy sprite Lich
1200 40 40
Fire Dia
2,200 EXP
3,000 Gil
Dry Ether (Rare Drop)
Terra Cavern 049

Treasure

Cornelia Castle

  • Iron Armor (1F, Requires Mystic Key)
  • Tent (1F, Requires Mystic Key)
  • Nitro Powder (1F, Requires Mystic Key)
  • Cottage (1F, Requires Mystic Key)
  • Saber (1F, Requires Mystic Key)
  • Mythril Knife (1F, Requires Mystic Key)

Marsh Cave

  • Silver Armlet (B3, Requires Mystic Key)
  • Antidote (B3, Requires Mystic Key)
  • 1020 Gil (B3, Requires Mystic Key)

Chaos Shrine

  • Rune Blade (Requires Mystic Key)
  • Werebuster (Requires Mystic Key)
  • Gold Needle (Requires Mystic Key)

Elven Castle

  • Mythril Hammer (Requires Mystic Key)
  • 800 Gil (Requires Mystic Key)
  • 700 Gil (Requires Mystic Key)
  • Bronze Gloves (Requires Mystic Key)

Western Keep

  • Power Staff (Requires Mystic Key)
  • Falchion (Requires Mystic Key)
  • Steel Gloves (Requires Mystic Key)

Mount Duergar

  • Tent (Requires Mystic Key)
  • Great Helm (Requires Mystic Key)
  • Wyrmkiller (Requires Mystic Key)
  • Ether (Requires Mystic Key)
  • Potion (Requires Mystic Key)
  • Mythril Mail (Requires Mystic Key)
  • 575 Gil (Requires Mystic Key)
  • Cottage (Requires Mystic Key)

Cavern of Earth

  • 1975 Gil (B1)
  • 880 Gil (B1)
  • Potion (B1)
  • Antidote (B1)
  • 795 Gil (B1)
  • Coral Sword (B2)
  • Tent (B2)
  • 330 Gil (B2)
  • 5000 Gil (B2)
  • Leather Shield (B2)
  • 575 Gil (B2)
  • Sleeping Bag (B3)
  • Gold Needle (B3)
  • 3400 Gil (B3)
  • 1020 Gil (B3)
  • Staff (B4)
  • Mythril Shield (B4)
  • 1455 Gil (B4)
  • 5450 Gil (B4)
  • 1520 Gil (B4)
  • 3400 Gil (B4)
  • Tent (B4)
  • 1250 Gil (B4)

Giant's Cave

  • Mythril Helm (Treasure room)
  • 450 Gil (Treasure room)
  • 620 Gil (Treasure room)
  • Great Axe (Treasure room)

Bosses

Boss

Vampire

Vampire boss sprite
Location: Cavern of Earth B3
Level: 14+
Difficulty: Medium

Strategy

Weaknesses: Fire, Dia
Resistances: None

Vampire

The Vampire is a straightforward fight if you exploit his weaknesses. His primary attacks are physical and can inflict Paralysis. Your main source of damage should come from magic. Have your Black/Red Mage cast Fira or Firaga, and your White Mage use Diara. Your physical attackers can supplement the damage, but the magic is what will end this fight quickly and safely.

Boss Stats

HP
280
Attack
76
Defense
26
Accuracy
39
Agility
36
Intellect
26
Evasion
72
Mag Def
75

Rewards

EXP: 1200
GIL: 2000
Drops: Star Ruby (Key Item)
Boss

Lich

Lich boss sprite
Location: Cavern of Earth B5
Level: 16+
Difficulty: Hard

Strategy

Weaknesses: Fire, Dia
Resistances: Ice, Lightning

Lich

Lich is the first of the Four Fiends and a major step up in difficulty. He uses powerful area-of-effect spells like Blizzara, Fira, and Thundara, and his physical attack can paralyze.


He is weak to Fire and Dia. The core strategy is to buff your strongest fighter with Haste and multiple casts of Temper. While your mages are setting that up, your White Mage should be ready with Curaga. Once buffed, your fighter will deal immense damage. Have your Black Mage continuously cast Firaga to speed up the process.

Boss Stats

HP
1200
Attack
40
Defense
40
Accuracy
49
Agility
12
Intellect
30
Evasion
24
Mag Def
120

Rewards

EXP: 2200
GIL: 3000
Drops: Earth Crystal restored, Dry Ether (Drop)