Ys IX: Monstrum Nox - Official Complete Guide and Visual Collection (イースIX -Monstrum NOX- 公式コンプリートガイド+ビジュアルコレクション) is an official strategy guide of Ys IX: Monstrum Nox and also doubles as an artbook of the game.
The content of the book is divided into follow sections:
This is the artbook section of the book. It collects a few design illustrations of the characters, monsters and dungeons. Also, some bonus artwork and cutscenes are included here.
A timeline of the story walkthrough of the main quest and mandatory Grimwald Nox character joining, etc. Also, you can find a list of sidequest and all Grimwald Nox. After this is a series of detailed maps of the region, area and dungeons, and how you can go about fighting the bosses of the game.
- A timeline of events that happens before Ys IX: Monstrum Nox take place.
- Dialogue transcripts of active voices within the game
- A column about the characters that appears during Azure Petal sidequest and during the final boss fight.