Belziat & the 3 Saints
The mysterious island where The Commune was exiled to after the War of Ideals. It, like Crynov, has strongly magnetized base whose magnetic field makes it incredibly difficult to sail to using traditional navigation. To make matters worse for those wishing to sail to Shin Sekai, it is surrounded by a permanent fog and dangerous shoal of jagged rocks protruding from the ocean. It is unknown and doubtful whether The Commune even made it there safely.
The only way to sail to Shin Sekai is using an artifact discovered by a legendary explorer from The Second Age, called the Log. It is a magical device similar to a compass that instead records the magnetic pull between the two islands, Crynov and Shin Sekai, on each other. After staying on one island with for about a week, the Log will always point directly to the other, much like a compass always points north. Even after the discovery of the Log, travel to Shin Sekai was deem too dangerous and never undertaken, least on of the Logs be lost forever.
When The Commune was exiled, it is said there was one man loyal to the Saints secretly sent with them to sabotage their Log once they had reach the island, preventing any chance of their return.