In this guide, I will share with you how to get all 3 Star-Shaped Gems on Tsurumi Island, obtain the secret achievement “A table of two cities” and one Luxurious chest!
Do note that you need to have Peculiar Pinion gadget with you from Octave of Maushiro world quest.
Mural room location
Teleport to Shirikoro Peak waypoint and head north until you reach the underground.
Enter a room full of murals beyond the stone gate.
If your stone gate is sealed, please complete the “A Particularly Particular Author” world quest to open the gate. A video guide related to this quest can be found in the descriptions.
Star-Shaped Gem No.01
From the small room, head northwest until you see a wall with a bird pattern. Use the peculiar pinion gadget in front of the wall.
Star-Shaped Gem No.02
The second wall is just outside the previous room. Use the gadget to destroy the wall.
Star-Shaped Gem No.03
Turn your vision 180 degrees and go down the stair to the last wall.
Head west and climb the wall until you reach the second platform.
Place the gems
Return to the room with the Mural and use the Star-shaped gem on the mural.
Three Seelie’s will appear and you need to follow all of them.
Getting secret achievement
You can get the secret achievement – “A tale of two cities” after removing all 4 walls around this area (removed 3 earlier when trying to get the gems)
Seelie No.01
Teleport to Moshiri Ceremonial Site waypoint and head northeast.
Seelie No.02
Teleport to Shirikoro Peak waypoint and glide towards the east.
Seelie No.03
Teleport to Moshiri Ceremonial Site waypoint and head southwest.