Adam Schlagman unveils a surprise return in the pages of GREEN LANTERN CORPS

First the Black Lantern Corps rose from the Crypt on Oa decimating the planet and many Lanterns in their horrific path.
Then Kyle Rayner’s brush with death and a Black Lantern ring resulted in Guy Gardner being blinded by great rage as he transformed into a Red Lantern killing machine.
All this tragedy and devastation led to [...] http://tinyurl.com/yejnba3