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Cyrus' Fourth Chapter
Octopath Traveler

Cyrus' Fourth Chapter

Walkthrough for Cyrus' Fourth Chapter in Octopath Traveler, including detailed steps for navigating the Ruins of Eld, defeating the boss Lucia, and finding all hidden treasures and secrets.

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Walkthrough for Cyrus' Fourth Chapter in Octopath Traveler, including detailed steps for navigating the Ruins of Eld, defeating the boss Lucia, and finding all hidden treasures and secrets.

Walkthrough
  1. 1
    Begin in the Ruins of Eld. Head west, bypassing the first two rooms.
  2. 2
    Go up the stairs past the second room, hug the western wall while continuing north, then press right to find a secret path.
  3. 3
    The secret path leads to a purple chest containing a Rune Bow.
  4. 4
    Return to the main path and go north. Enter the room on the left to find a Refreshing Jam.
  5. 5
    Continue north to find another chest in the sunlight containing 20,000 Leaves.
  6. 6
    From the previous chest, travel west and south, down stairs, into a new area.
  7. 7
    Find a purple chest containing 50,000 Leaves.
  8. 8
    Return to the first money chest's area and go southeast to find stairs leading down to a chest with Shadow Soulstone L.
  9. 9
    Make your way to the trail above this chest, keeping to the east, until you reach a mural that triggers a scene.
  10. 10
    After regaining control, look left of the main mural to find a chest hidden behind a fallen pillar containing a Vivifying Stone.
  11. 11
    Continue east, past the save point, and down the stairs beyond it to another area.
  12. 12
    Find a Void Amulet in the chest inside the small room.
  13. 13
    Return to the save point and pass through the door to a new area.
  14. 14
    Go straight north for a chest containing Healing Grape Bunch.
  15. 15
    In the opening to the left of the previous chest, find another chest with Energizing Pomegranate L.
  16. 16
    West of that is a library where Cyrus takes over. A secret passage is behind this building (left), leading to a locked chest with a Rune Bow (right).
  17. 17
    Go up the stairs and to the left to exit the library. Descend the stairs beyond and open the chest to your right containing Ice Soulstone L.
  18. 18
    South of that is another chest containing a Knight’s Shield.
  19. 19
    Continue to the save point and the boss area.

BOSS - Lucia

Stats / Weaknesses:

  • Phase 1: Weak to Swords, Spears, Daggers, Axes, Bows. Has 30 shields.
  • Phase 2: Weak to Fire, Ice, Lightning, Wind, Light. Has 15 shields.
  • Phase 3: Weak to Swords, Axes, Lightning, Light. Has 8 shields.

Phases:

  1. Phase 1: Lucia has two actions per turn. Uses Physical Perfection (grants 5 weaknesses, 30 shields), Sweep (high damage to all), Wallop (high damage, may inflict Unconscious), Pulverize (major damage to one, drains BP).
  2. Phase 2: Shields reduced to 15. Changes weaknesses. Uses elemental attacks: Shatter Soul (physical damage + SP damage), Shadow Slash (dark elemental damage, may inflict Silence), Hellfire (dark elemental damage to all).
  3. Phase 3: Shields reduced to 8. Changes weaknesses. Gains another action per turn. Uses Berserk Rage (random physical damage), Rampage (physical damage to 2-4 targets). Can heal for a small amount. Can use Almighty Curse (reduces party HP to 1).

Strategy:

  • Use multi-hit moves (e.g., Rain of Arrows, Thousand Spears) to break shields quickly.
  • Use Hired Help (Mercenary) to increase physical defense and Shackle Foe (Thief) to lower her physical attack.
  • In Phase 2, exploit elemental weaknesses.
  • In Phase 3, manage debuffs and heal effectively. Be prepared for Almighty Curse.
  • Outheal damage and cure ailments to survive.

Post-Boss:

  1. After defeating Lucia, return to the library you passed earlier.
  2. Check the bookshelf on the right to obtain the High Hornburgian Dictionary.
  3. Use Scrutinize on three specific spots: two in the lower section of the current library, and one back where you fought Lucia.
  4. Random encounters will still occur during this process.
  5. Once Scrutinize is completed on these spots, return to the mural in the previous area and Scrutinize it. This will lead to more questions.

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