Realm of the Great Shadow

The Realm of the Great Shadow (イナルノ) is an area accessible from the depths of the Old Schoolhouse although it exists as a different plane of existence. It serves as a gateway to the final trial to become the Awakener of Valimar, the Ashen Knight. It is the final dungeon of Trails of Cold Steel.

Interior
Maps provided by Zoelius

Area 1=
 * -|Area 2=
 * -|Area 3=

Trivia
This is the only Cold Steel final dungeon that does not have a "boss rush" where you refight all members of the antagonist group. In the Infernal Castle of CS2, the Gral of Erebos in CS3 and the Tuatha de Danaan in CS4, you get to refight all past villains, but in the Realm of the Great Shadow you don't refight any ILF member.