Referred to in the note hidden in the hilt of a sword, this castle is somehow related to Ameiko and her mysterious family lineage.
In the note, Rokuro Kiajitsu makes mention of a “Box of Warding” containing “our family’s greatest treasure” hidden in the secret third vault under the castle.
The crumbling castle is located on the banks of the steam river.
As the caravan approached the castle’s location, Ameiko became ill and fell into unconsciousness and could neither proceed to nor retreat from that location.
According to Spivey, it has been occupied by black birdlike creatures for some time.