The Last Story Walkthrough
Chapter 30: Lazulis Castle: Great Hall
After the cutscene, Zael will be left waiting on a bridge in Lazulis City. Enter the nearby tavern to talk with your friends, especially Syrenne and Lowell. Then, be sure to speak with Mirania on the second floor.
Done with that, return to the castle. You’ll start at the Ballroom Balcony. Use Seek to find the singing as you enter the ballroom, then follow it up the stairs. In the Living Quarters, use Seek again to find the singing out toward the Connecting Bridge.
From the Great Hall, continue out toward the Courtyard to follow the song, then down the stairs to the lift, where you’ll want to go to the Castle Depths next. In the depths, go through the portal to your right.
You’re now back in the ruins. Continue down back to the room where Zael first gained the Outsider’s power. You’ll find Calista standing near a glowing cracked wall. Check the wall to break it down. Check it twice to reveal a portal.
If you’re ready, check the portal open it, then enter and learn of the Arganan family’s past.