Unknown Sky Giant

Key takeaways

Use the following points to plan the quest before leaving Lookout Landing.

• Start at the Emergency Shelter Speak with Gralens in the Emergency Shelter at Lookout Landing to unlock Unknown Sky Giant after the prerequisite quests are complete. Starting the quest
• The target is in western Hebra Search for the reported giant on a Sky Island in the western Hebra region. The target is a Flux Construct I rather than an unnamed rock creature. Finding the target
• Collect every reward The boss encounter pays 100 Rupees and provides a Flux Construct I Core plus an Old Map from its treasure chest. Quest rewards
• The wider chain has a bonus Completing all three unknown-monster quests assigned through Gralens grants a Diamond in addition to the rewards from the individual hunts. Completion bonus

Unknown Sky Giant overview

Unknown Sky Giant is a monster-hunting side quest given by Gralens in the Emergency Shelter at Lookout Landing. Its target is a Flux Construct I on a Sky Island in the western Hebra region.

Unknown Sky Giant becomes available through Gralens, who can be found in the Emergency Shelter at Lookout Landing. The quest is part of his investigation into unidentified monsters around Hyrule, so it does not begin as a standalone encounter discovered at the target location. Link must first satisfy the quest chain's stated prerequisites before Gralens will assign this report.

The objective is to find and defeat a Flux Construct I on a Sky Island in western Hebra. Gralens's description presents the creature as a mass of rocks shaped like a giant, but the target is ultimately identified as a Flux Construct. The quest therefore combines a short investigation prompt with a construct boss encounter in a sky-region setting.

The direct reward for defeating the target is 100 Rupees. The encounter also provides a Flux Construct I Core and a treasure chest containing an Old Map. Completing all three of Gralens's unknown-monster quests adds a Diamond as a bonus, making this quest more valuable when treated as part of the complete set rather than as an isolated assignment.

Where this sits

Requirements

Unknown Sky Giant is gated behind a set of earlier monster-hunting objectives.

• RequiredComplete Bring Peace to Hyrule FieldThis quest must be completed before Gralens can unlock Unknown Sky Giant.
• RequiredComplete three specific WANTED monster-hunting questsThe quest requires three particular WANTED quests. Their individual names are not identified in the supplied source material.
• RequiredSpeak with GralensAfter the prerequisites are complete, visit Gralens in the Emergency Shelter at Lookout Landing to receive the quest.

Objectives

1. Receive the investigation from GralensBegin the quest by speaking with Gralens in the Emergency Shelter at Lookout Landing.
2. Find the unknown sky giantTravel to a Sky Island in the western Hebra region and locate the reported rocky giant.
3. Defeat the Flux Construct IThe unidentified monster is revealed to be a Flux Construct I, which must be defeated to resolve the quest.
4. Collect the encounter rewardsAfter the victory, collect the 100 Rupees, Flux Construct I Core, and Old Map associated with the hunt.
5. Complete Gralens's full unknown-monster setThis is an additional chain objective rather than a requirement for the individual hunt; completing all three unknown quests awards a Diamond.Optional

Walkthrough

1. 01

   Complete the required earlier quests

   Finish the prerequisite quests

   Before looking for Gralens's sky report, complete Bring Peace to Hyrule Field and the three specific WANTED monster-hunting quests required by the chain. The supplied material does not identify those three quest names, so check the quest log rather than assuming every WANTED notice counts.

   TipTreat the three named WANTED quests as a fixed prerequisite set; unrelated monster hunts may not advance this requirement.

   Watch outGralens will not unlock Unknown Sky Giant until the prerequisite set is complete.

2. 02

   Unlock Unknown Sky Giant

   Speak with Gralens in the Emergency Shelter

   Go to the Emergency Shelter at Lookout Landing and talk to Gralens after the prerequisites have been cleared. He describes the target as a mass of rocks in the shape of a giant, which starts the investigation into the unknown sky monster.

   Location: Emergency Shelter, Lookout Landing

   Checkpoint
3. 03

   Find the reported monster

   Travel to the western Hebra Sky Island

   Use your available sky-travel route to reach a Sky Island in the western Hebra region, then search the island for the reported giant-shaped formation. The quest source identifies the region and destination type but does not specify a single launch point, coordinates, or exact island name, so rely on the active quest marker and map.

   Location: Sky Island in the western Hebra region

   TipPrepare before leaving the surface: a sky-island approach can require separate planning for altitude, cold conditions, and safe landing.

4. 04

   Identify the Flux Construct I

   Identify the unknown giant

   Approach the mass of rocks and begin the encounter when the target reveals itself. The apparent giant is a Flux Construct I, so the fight uses the construct's exposed detachable component rather than a conventional humanoid enemy's attack pattern.

   Location: Western Hebra Sky Island

   Watch outDo not mistake the initial rock description for a separate enemy type; the quest target is the Flux Construct I.

5. 05

   Defeat the Flux Construct I

   Disassemble the Flux Construct I

   During the fight, look for the construct's vulnerable component and use the game's object-manipulation tools to detach it when an opening appears. Striking the exposed component is the core of the encounter, while staying close to the moving structure can leave Link vulnerable to its body and area attacks.

   TipFocus on creating openings and repositioning after each attack rather than attacking the surrounding body indiscriminately.

6. 06

   Collect the Core and Old Map

   Search the encounter area after victory

   Once the Flux Construct I is defeated, collect the dropped Flux Construct I Core and look for the treasure chest containing the Old Map. These are separate from the Rupee payment, so check the arena before leaving the Sky Island.

7. 07

   Complete the unknown-monster set

   Return to the wider Gralens chain

   The individual hunt is rewarded with 100 Rupees, but the chain has an additional completion reward. If this is one of the three unknown-monster quests from Gralens, finish the other two to receive the Diamond bonus.

   TipRecord which of Gralens's unknown reports you have completed so the final Diamond is not overlooked.

Mission mechanics

Flux Construct I encounters are built around separating a vulnerable component from a larger animated structure. The practical approach is to watch for the highlighted or otherwise exposed component, use Ultrahand to pull it free when the game permits, and then attack that component while the construct is disrupted.

The construct's body can make ordinary melee positioning awkward because the entire formation functions as the enemy. Keep enough space to read its movement, avoid standing directly beneath an active attack, and use the arena's open sky-island terrain to reset your position. The supplied quest information does not establish a unique arena layout, so this guidance is general to Flux Construct I encounters rather than a map-specific route.

After the boss is defeated, the reward phase matters as much as the victory flag. The Flux Construct I Core is a dropped material and the Old Map is in a treasure chest; search both sources before moving on, then account for the separate Diamond condition tied to completing all three of Gralens's unknown-monster quests.

What works and what does not

Encounter phases

1. 1

   Approach and identification

   Starts: Approach the giant-shaped mass of rocks on the western Hebra Sky Island.

   The reported unknown monster becomes identifiable as a Flux Construct I when the encounter begins.

   • Leave room to move before initiating the fight.
   • Use the quest marker and the island terrain rather than relying on an unsupported exact landmark.
2. 2

   Component exposure

   Starts: The Flux Construct I begins moving and presents openings in its structure.

   The key combat task is to locate the vulnerable component and separate it from the construct.

   • Construct body movementTell The large rock body shifts as the target moves through the arena.Answer Avoid remaining directly in its path and wait for a safe opening to manipulate the vulnerable component.
   • Ultrahand is central to the standard Flux Construct strategy.
   • Do not spend the entire encounter attacking random outer rocks when the exposed component is available.
3. 3

   Disruption and damage

   Starts: The vulnerable component is detached from the main body.

   The construct is disrupted, creating an opportunity to attack the separated component before it reforms or the boss resumes its pattern.

   • Area attackTell The construct can threaten space around its body during active movement.Answer Back away after extracting the component, then attack from a position that leaves room to evade.
   • Use the disruption window efficiently, but prioritize avoiding the next body movement.
   • Repeat the extraction-and-damage cycle until the Flux Construct I is defeated.
4. 4

   Reward search

   Starts: The Flux Construct I is defeated.

   The combat encounter ends, but the reward collection is not complete until Link gathers the dropped Core and opens the nearby treasure chest.

   • Search the arena before leaving the Sky Island.
   • The Old Map and Flux Construct I Core come from different reward sources.

Flux Construct I encounterSpoilers

• Location
  Sky Island in the western Hebra region
• Health
  Not specified in the supplied material.

Keep the Flux Construct I in view, avoid its moving rock body, and look for the exposed component. Use Ultrahand to pull that component free when possible, attack it during the resulting disruption, and repeat the process while maintaining space to evade. After the boss falls, collect the Flux Construct I Core and open the treasure chest containing the Old Map.

Quest checklist

• Complete Bring Peace to Hyrule FieldRequired before Unknown Sky Giant can be unlocked.
• Complete the three specific WANTED monster-hunting questsThe source confirms the requirement but does not name the three quests.
• Speak with Gralens in the Emergency ShelterThis starts the quest after the prerequisites are complete.
• Reach the western Hebra Sky IslandThe target is located on a Sky Island in western Hebra.
• Defeat the Flux Construct IThis resolves the monster-hunting objective.
• Collect the Flux Construct I CoreDropped by the defeated target.
• Open the treasure chestThe chest contains an Old Map.
• Complete all three unknown-monster quests from GralensOptional for this individual quest; required for the Diamond bonus.Optional

Collectibles and secrets

• 01
  Flux Construct I Core

  Where: Defeated Flux Construct I on the western Hebra Sky Island

  The Core is dropped by the target after the boss encounter.

• 02
  Old Map

  Where: Treasure chest at the Flux Construct I encounter area

  Search the area after the fight and open the chest to claim this reward.

Failure conditions

• Link is defeated during the Flux Construct I encounterAs with other combat objectives, Link must survive the fight for the quest to be resolved.
• The target is left undefeatedFinding the rocky giant is not enough; the Flux Construct I must be defeated to complete the hunt.

Rewards

• 100 Rupees
  Direct reward for defeating the Flux Construct I.
• Flux Construct I Core
  Dropped by the defeated Flux Construct I.
• Old Map
  Found in a treasure chest associated with the encounter.
• Diamond
  Bonus reward for completing all three unknown monster quests from Gralens, rather than for this individual hunt alone.

Characters in this mission

• LinkThe player character who investigates and defeats the target.

AftermathSpoilers

Trivia

• Gralens's initial description frames the target as a giant-shaped mass of rocks before the creature is identified as a Flux Construct.
• The quest's title refers to the report's unidentified nature rather than using the target's final enemy name.
• Unknown Sky Giant is one part of a three-quest unknown-monster investigation associated with Gralens.

Sources

• Unknown Sky Giant quest guide — IGN
• The Legend of Zelda: Tears of the Kingdom quest reference — Zelda Wiki

Relationships