Big-Green-Rock was a massive lump of jade that rested near the edge of Heaven's Grave. It was considered a sacrosant place for the nezumi race. The Rememberers noticed the Rock had not changed and remained uncorrupted. The Nezumi had come to believe that their fate was linked to the Big-Green-Rock, existing despite the horrors nearby, and resisting the Shadowlands Taint. So long as the Rock existed, the Nezumi wiould adapt, overcome, and survive.