Illiago

Illiago is a mountain that was home to Ventriss which has become mostly Darkanium, from which the Shadowclad emerged.

History
Illiago was struck by a strange black lightning, which coincided with Damaron's becoming of Shadowone. The lightning seemed to 'infect' the mountain, and its rocks begun to mutate and reform into darkanium. The lightning seemed to form a being named Ventriss inside the mountain.

Ventriss diverted most of its energy into controlling a large darkanium drill which drilled deep into the Earth at the centre of Illiago. Sardant saw this drill upon sneaking into Illiago. This led to Sardant's belief that Ventriss had seized control and become the whole of Illiago, and was searching for some ancient power deep underground.

Shortly after Soren's becoming of Shadowone, Ventriss struck The Source. After using its power to battle with The Dark Nation, Ventriss was destroyed by Soren and since then, Illiago has become one of the garrisons for The Dark Nation.