The Panicking Boy, Part 8 Guide – Atelier Ryza: Ever Darkness & the Secret Hideout Walkthrough
The Megamouth lake monster | Atelier Ryza: Ever Darkness & the Secret Hideout
The Megamouth lake monster

In order to clear this part of the chapter, you will need to clear the following requirement:

  1. Defeat the Megamouth boss.

After delivering the summons to Empel and Lila, fast travel back to Treppe Hill.

The assembly will get underway, but Agatha will stop the proceedings halfway through to sound a monster alarm.

Agatha sounds the monster alarm and interrupts the assembly | Atelier Ryza: Ever Darkness & the Secret Hideout
Agatha sounds the monster alarm and interrupts the assembly

You will have time to prepare for the battle, so return to the Atelier first.

Synthesizing a Bug Net

A Bug Net will be extremely useful for this part. With it, you will be able to obtain ingredients for the Luft recipe, which will help against the boss.

For the Bug Net, use the Fragrant Honey Trees you collected for Part 4 and synthesize the new gathering tool.

Creating the Bug Net | Atelier Ryza: Ever Darkness & the Secret Hideout
Creating the Bug Net

Synthesizing Luft

The Luft recipe will come in handy right now. You can either synthesize a new item, or rebuild the one you’d created for Part 3.

First, however, you will need to obtain a few ingredients.

Lantern Fly

Fast travel to Pixie Forest – Arbor Ruins. Use the Bug Net on the lantern flowers in order to obtain Lantern Flies.

Using the Bug Net on the lantern flowers in Pixie Forest | Atelier Ryza: Ever Darkness & the Secret Hideout
Using the Bug Net on the lantern flowers in Pixie Forest
Catching Lantern Flies | Atelier Ryza: Ever Darkness & the Secret Hideout
Catching Lantern Flies

Return to the Atelier, and create or rebuild Luft. Focus on the Effect 1 (Wing Plant) and Effect 4 (Bug-category ingredients) loops, which will boost your Wind Element damage.

The Effect 2 loop (Gas-category ingredients) is also going to be useful, as it will add a Blowback effect that will delay the boss’ actions. Try to max out as many loops as possible. 

You can also create an extra two Luft units for your other two party members, although a single one for Ryza should be more than enough to take care of the boss.

The Effect 1, 2, and 4 loops in the Luft recipe | Atelier Ryza: Ever Darkness & the Secret Hideout
The Effect 1, 2, and 4 loops in the Luft recipe

Once you are done with the preparations, fast travel back to Kurken Island – Kurken Port.

Spotting the monster at Kurken Port | Atelier Ryza: Ever Darkness & the Secret Hideout
Spotting the monster at Kurken Port

The game will proceed automatically, so just read through the dialogue. The party will track the Megamouth down to the Deserted Port, and the boss fight will then start.

Fighting the Megamouth at the Deserted Port | Atelier Ryza: Ever Darkness & the Secret Hideout
Fighting the Megamouth at the Deserted Port

Megamouth Boss

Megamouth information | Atelier Ryza: Ever Darkness & the Secret Hideout
Megamouth information

Overall, Megamouth is weaker than the Old Castle Dragon, with significantly less HP. However, its attacks are slightly stronger, so keep an eye on your party’s health bars just in case.

Unlike the Old Castle Dragon, however, Megamouth does have a weakness. Just keep using the Luft you synthesized earlier, and the fight will be over in about three or four hits.

Defeating the Megamouth | Atelier Ryza: Ever Darkness & the Secret Hideout
Defeating the Megamouth

After the fight, just read through the dialogue, then head over to Treppe Hill.

Read through the dialogue and watch Ryza make her triumphant return, while Agatha exposes Bos’ plot.

Agatha reveals the culprits behind the rumors | Atelier Ryza: Ever Darkness & the Secret Hideout
Agatha reveals the culprits behind the rumors

Bos will run away, and then you will advance to the next part.