Wolf of the Signless

It's been 100 sweeps since the Signless/Sufferer banished the darkness and was blamed for the darkness having been there in the first place (which led to his execution by the highblood castes and the people building a statue in his honor in secret) and darkness has fallen on Alternia once again! Karkat emerges from the statue and takes up the Sufferer's mantle and needs to gather allies and regain powers lost over the years. Can Karkat save Alternia from the source of this horrible evil? Or is there something even sinister coming for Alternia and Karkat?
(PS, this story will be uploaded onto Ao3 and possible have a comic for it soon)