"The Eighth Ancestor calls forth shadow-men to his aid. The shadow-men are vigilant and unwavering in their duty to protect the Eighth Ancestor’s new found home. Their dark silhouettes blend seamlessly into the surrounding landscape, making one question if they are sentient or not. With the sun reaching its highest point in the sky, the shadow-men continue to scan the horizon with their void less eyes." - Energy Manual (Page 28)
Shadow-Men were creations of the Eighth Ancestor and appeared to the naked eye as towering silhouettes.