Below is a walkthrough on the main story quests in Chapter 4 of Atelier Ryza.
The Arid Lands
Now that we’re in a new area again, it’s time to explore! Wander deeper into Ashen Forest in search of Bos. Once you cross under a natural stone archway near the center of the map, a cutscene will trigger. Afterwards, speak with Kilo then return to the Underworld gate for another cutscene. Travel to Brunnen Manor on Treppe Hill.
The Abandoned Tower: 1
Wait 3 days then travel to Brunnen Manor on Treppe Hill to trigger a cutscene. Afterwards, return to the atelier then head to the Rasen District, Boden District and the Valentz Manor in Old Town. Once you’re done touring, return to the atelier then wait two days.
The Abandoned Tower: 2
Use the Gathering Synthesizer to travel to any world in search of the Resonance Orb, which is a purple bubbling mist. I went to a higher level world to get the highest quality Resonance Orb. Once you’ve collected the orb, synthesize the Prosthetic Arm with a quality of at least 80 then deliver it to Lila, who is standing near the Puni on the porch outside. Afterwards, wait at the atelier for 1 day. Following a brief cutscene with Lent, head to Brunnen Manor on Treppe Hill. Now it’s time to head to the tower, which is to the northwest of Traveler’s Road. Set off to the Central Lime Plains of the Traveler’s Road then proceed to the green map transition on the west side of the area. This will take you to Limewick Hill. Press forward to the very north of this map to located the next green map transition.
The Abandoned Tower: 3
Now that your in the Valley Path of Liese Valley, make your way to the northwestern map transition to reach Ancient Battlefield. In this area, continue to the north towards the objective to trigger a cutscene followed immediately by a boss fight. Defeat the dragon then proceed north to the next area called the Broken Defense Line. Once in this area, make your way to the very north to the green map transition. When you transition to the next area, a cutscene will trigger. Afterwards, continue to the Pynnor Holy Tower and make your way through the Sanctuary Garden to the Spiral Hall. Head a short ways up the stairs to trigger a cutscene then press forward through the area. Once you reach the end and continue to the next area, a long cutscene will trigger. The group will then need to head back to the atelier.
Click here for the next guide on Chapter 5!