FE3H | The Impregnable Fortress (Azure Moon: Chapter 20) | Fire Emblem Three Houses

Read this Fire Emblem: Three Houses story walkthrough guide of Azure Moon Chapter 20 - The Impregnable Fortress (Blue Lions). Including conversation options, battle tips, quests, and more!

Table of Contents

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Azure Moon Chapter 20 - The Impregnable Fortress Part 1 Guide

Preparing For Battle Walkthrough Chart

No.Procedure
1A cutscene will start at the beginning of the Chapter
2A dialogue with Dimitri and the others will play
3[Gilbert: Conversation Options]
・Should we try to avoid it?
→ Neutral reply
・Can we really prevail?
→ To be confirme
4Blue Sea Moon 7/5 - Free Time
5Blue Sea Moon 7/6 - Lecture Day
6Blue Sea Moon 7/12 - Free Time
- Flayn's Birthday
7Blue Sea Moon 7/13 - Lecture Day
8Blue Sea Moon 7/19 - Free Time
9Blue Sea Moon 7/20 - Lecture Day
10Blue Sea Moon 7/26 - Free Time

4~10. Focus On Strengthening Your Units

Focus On Strengthening Your Units

During this month, you will be given 4 Free Times, and 3 Lecture Days. It is recommended to spend half of Free Time battling units, while the other half is focused on raising motivation for upcoming Lecture Days.

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Azure Moon Chapter 20 - The Impregnable Fortress Part 2 Guide

Taking Fort Merceus

No.Procedure
1Blue Sea Moon 7/31 - Mission Day
2A cutscene will play after deploying for the Mission
3[Dimitri: Conversation Options]
・No need to worry.
→ To be confirmed
・Will you save me if I'm in trouble?
→ Neutral reply
4One last cutscene will play with the Death Knight, Caspar, and Linhardt
5Fight and take back Fort Mercues from the Death Knight
7Another cutscene will play at the end of the battle
8[Dimitri: Conversation Options]
・We should have a victory celebration.
→ Neutral reply
・Aren't you overworking yourself?
→ To be confirmed
9After the cutscene, the next chapter "Our Chosen Paths" will begin

Taking Fort Merceus Battle Tips

Capture Defensive Weaponry As You Advance

Capture Defensive Weaponry As You Advance
Click to Enlarge

The map will feature 4 defensive weaponry stations, each with an enemy unit. As you push forward into the fortress, make sure to defeat the enemies at these stations in order to stop enemies from dealing much damage to you at range.

Each Side Of The Fortress Spawns Reinforcements

Each Side of the Fortress Spawns Reinforcements
Click to Enlarge

The far left and far fight sides of the map each have units that can continually spawn enemies. Split your units into two groups to quickly capture these points. This way, you will not get overwhelmed with enemies later on in the fight.

Two Giant Demonic Beasts Present

Two Giant Demonic Beasts Present

There will be two Giant Demonic Beasts present on the battlefield. These enemies hit very hard and take less damage due to their barriers. Use your Gambits to take out their barriers, and make them susceptible to your attacks!

Each Beast Has Three HP Bars

Each Beast Has Three HP Bars

Each Giant Demonic Beast will have three HP Bars for you to destroy. Bring in your heavy hitter units to take out these tanky enemies one at a time.

Caspar & Linhardt Present in the Battle

Caspar And Linhardt Present In The Battle

Former students Caspar and Linhardt can also be found on the map. They can be ignored, but can prove to be a handful when they are wailing on your units. Deal with any of them if they get in your way.

Main Objective Is To Defeat Death Knight

Main Objective Is To Defeat Death Knight

The only condition for Victory is to defeat the Death Knight. It is suggested to slowly push forward while taking objectives. This will stop more enemies from being a nuisance as you focus all your attacks on Death Knight.

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