Chapter 4: Zoldaad: Factory, Keys & Enterprise
Follow Jake’s plan, lower all three factory bridge sections and win the real Ignis fight; obtain both castle keys, defeat the emperor, then finish Lazarov’s airship pursuit.
Quick answer
Follow Jake’s plan, lower all three factory bridge sections and win the real Ignis fight; obtain both castle keys, defeat the emperor, then finish Lazarov’s airship pursuit.
On this page
Optional castle reward before moving on
The upper floor’s first right-side room contains a marked bookshelf clue. Read it, then examine the painting on the left of the lower floor for Hairpin of Grace. You may return later. Painting route and reward.
References: game8.co
Main route checkpoints
- Take the Mozul train and complete the capital information markers. Meet Jake near the Imperial Hotel, then enter the tunnel to Rebel Hideout.
- Hear the plan and rest. At Weapons Factory, finish three side routes and activate their large pedestals to complete the central bridge.
- Let the first two Ignis meetings end through story. Fight the winnable third battle with Water after Lasswell removes the barrier.
- Return to Jake’s room. Use the newly open tunnel gate and progress through the capture/Amelia escape scenes.
- Get the Dungeon Key from Shera’s guard and rescue him. Then obtain the separate Throne Room Key from the upper-floor captain.
- Beat Emperor Sosa with Water, finish the roof/Evan events and the Enterprise pursuit, then board Invincible and defeat Lazarov’s experiments.
If progression seems stuck
Free airship use follows the chapter’s closing scenes, not the emperor alone. Return through the capital and inspect the Enterprise when directed.
Battle responses · Optional shard sweep · All chapters
Sources and verification
Reviewed 1 November 2026. This guide compares published references. Independent gameplay results and current-patch timing are not claimed; source-reported conflicts remain explicit.