The Unabading Chamber

Scholars of Khilaria refer to the realm that Batul, the Ruin was sealed by Isana, the Mother as the Unabading Chamber. During the events of the Primordial-Titan War, Isana focused her attention on creating the four elemental planes that encompass the Material Plane. Due to Isana's concentration waning from the seal of the Unabading Chamber, Batul was able to escape. Batul and Isana pulled Khilaria into three separate planes of existence, Isandur, Khilaria, and Batuldur. With the separation of the planes, Isana granted divinity to the First Age Titans of Khilaria hoping to recruit their help in sealing Batul once again within the Unabading Chamber; however, some of the Titans quickly allied with Batul instead. After a long-fought war, Isana was able to seal Batul within the Unabading Chamber once more. However, the seal, being broken before, required more energy and concentration from Isana, which caused her to retreat to her home plane Celestia indefinitely to protect her creation from the destruction of Batul.