Not much is yet known about this Supposed Island, but during the encounters with an Oracle by the name of Mura the Knights came to discover the Island's name and atleast a General Location. This island is found somewhere in the Ruby Sea and apparently the home of some ancient ruins which at the center of them is an Alter. This Alter is supposibly a place of great summoning. As of now the Knights don't have a great deal of information regarding this lost Island but one thing is certain they'll be learning a great deal more in future adventures.
First Mentioned in Book V. Discovered by an Interrogation performed on a Captive that had served the Oracle Mura.