Green Lantern Corps (2006) #40 (Online Order Only)

The battle continues on Oa as the honored dead of the Green Lantern Corps and the recently deceased Sciencell convicts who lost their lives in the riots have all become Black Lanterns and will not rest until the bloody hearts and minds of the Green Lanterns are literally in their hands. Kyle Rayner, Guy Gardener and John Stewart resort to their most brutal fighting yet as the Blackest Night threatens to envelop Sector Zero and send the universe reeling into chaos!