This guide explains how to use the Nightmare Biolab Exchange NPCs in Lighthalzen, which provide various services, such as teleportation, item exchange, and special enchantments.

1. Ohno Tohiro (Nightmare Biolab Entrance)

1. Location: Lighthalzen (321, 218)
2. Ohno Tohiro allows you to enter the Tomb of Honor (Nightmare Biolab) for a fee of 100,000 Zeny or 10 Research Charts.

2. Lunar (Nightmare Biolab Teleportation)

1. Location: Lighthalzen (320, 204)
2. Lunar offers teleportation to the Nightmare Biolab for 20 Sentimental Fragments and 150,000 Zeny, or for a safer option, 30 Sentimental Fragments and 2,000,000 Zeny.

3. Veteran Adventurer (Energy Piece Exchange)

1. Location: Lighthalzen (319, 213)
2. This NPC allows you to exchange Energy Pieces for powerful items:
   1. 1 Will of Warrior: 200 Energy Pieces
   2. 1 Blood Thirst: 200 Energy Pieces
   3. 1 Ghost Chill: 300 Energy Pieces

4. Bully (Energy Fragment Exchange)

1. Location: Lighthalzen (312, 296)
2. Bully exchanges various Energy Particles for Energy Fragments:
   1. 2000 Silent Energy Particles → 1 Energy Fragment
   2. 1000 Weak Energy Particles → 1 Energy Fragment
   3. 500 Unstable Energy Particles → 1 Energy Fragment
   4. 50 Fallen Energy Particles → 1 Energy Fragment
   5. 50 Energy Fragments → 1 Sentimental Fragment
   6. 666 Energy Fragments → 1 Cursed Fragment

5. Silent Mind (Death's Chest Exchange)

1. Location: Lighthalzen Dungeon (145, 265)
2. This NPC allows you to exchange 3 Souls of the same type for a Death's Chest.

6. Wandering Mind (Helmet Enchanter)

1. Location: Lighthalzen Dungeon (134, 265)
2. This NPC offers enchantments for Old Helmets using Cursed Fragments. You can enchant slots 1-4 and upgrade enchantment levels.

1. Speak with Ohno Tohiro:

1. Pay 100,000 Zeny or provide 10 Research Charts to enter the Tomb of Honor.

2. Teleportation via Lunar:

1. For a more convenient teleportation, use 20 Sentimental Fragments and 150,000 Zeny, or for a safer option, 30 Sentimental Fragments and 2,000,000 Zeny.

1. Veteran Adventurer:

1. Exchange Energy Pieces for high-tier items like Will of Warrior, Blood Thirst, and Ghost Chill.

2. Bully:

1. Exchange various types of Energy Particles for Energy Fragments or convert Energy Fragments into Sentimental Fragments or Cursed Fragments.

1. Speak with the Wandering Mind:

1. Enchant your Old Helmets using Cursed Fragments. The NPC can add or upgrade enchantments in the 4th, 3rd, and 2nd slots, offering a wide variety of stat bonuses.
2. Upgrading enchantment levels requires Cursed Fragments and offers a chance to further enhance the helmet's power.

- Energy Pieces and Energy Fragments: These are crucial currencies for exchanging items and performing enchantments. - Teleportation Costs: Make sure you have enough Sentimental Fragments and Zeny when using Lunar's services. - Helmet Enchantment: Only Old Helmets can be enchanted by the Wandering Mind NPC using Cursed Fragments.

Visit the Nightmare Biolab Exchange NPCs in Lighthalzen to enter the Tomb of Honor, exchange Energy Pieces for powerful items, or enchant your Old Helmets with Cursed Fragments.