Dragon Back-Bone

The is a strange and enormous structure located 30 miles north of Paysan.

Background
Its exact length is as indeterminate as its height, but it could actually be the fossilized skeleton of a gigantic Dragon.

Percival arc
After saving Percival and Donny from Pellegarde with an Incantation Orb of Teleportation, Sin tells them about the Holy Knights of the Kingdom of Camelot and the prophecy concerning the Four Knights of the Apocalypse.