Reisen Gorge

Reisen Gorge (ライセン) is a canyon that divides the north and south portions of Tortus' mainland. It is the place where Miledi Reisen's Labyrinth and the exit to Oscar Orcus' Labyrinth is located.

Layout
Reisen Gorge runs anywhere from 1 km deep at its more shallow ends, to 2 km deep in certain places. Depending on the area, it can span anywhere from 900 meters to 8 km wide, and it runs all the way from the Gruen Desert in the west to the Sea of Trees in the east. There are staircases at each end of the gorge.

Reisen Gorge's most unique feature is that magic can not be used inside of it. Furthermore, it is the home to an abundance of strong monsters.

History
The chasm that would come to be known as Reisen Gorge was formed when Tortus' guardian spirit Grandia sacrificed himself to prevent Ehit from killing all those who resided on the mainland's southern hemisphere. It would eventually get its name from the Reisen family, who were powerful magic users that existed since he founding of the Grandort Empire.

Throughout Tortus's history, Reisen Gorge has been used as an execution site.

Sometime after Miledi Reisen joined the Liberators, a base was created deep beneath Reisen Gorge, but it would later be abandoned when it was attacked by mutated soldiers of the Igdol Demon Empire.

After the Liberators failed in their goal of freeing Tortus from the tyranny of the gods, the created one of seven labyrinths deep within Reisen Gorge, with Miledi forced to live there for thousands of years. Furthermore, the exit to the labyrinth made by Oscar Orcus was also constructed in Reisen Gorge.

Trivia

 * Reisen is German for "to travel". It also means "to fall", as well as "to rise" in some cases.
 * Reisen Gorge is one of the few locations that has retained its name in both the Main series and Zero series timelines.