" There is an ancient prophecy within the Book of Oa called the Blackest Night. It warns of the dangers of allowing others to harness the power of the emotional spectrum -- the coalescence of emotions given off by all sentient beings and transformed into power.

Cosmic Revelations, verse 6 reads-- "The light of the emotional spectrum will rise! The red throes of Rage, the orange light of Avarice, the yellow fire of Fear, the blue rays of Hope, the indigo glow of Compassion and the violet aura of Love-- and in the center of it all, the green might of Willpower. And as the light rises, so shall an unknown darkness! A darkness with no satiation. A darkness with no life."

I know what the coming darkness is. I speak to it. I worship it. I do as it tells me to do. Today, it demands that I open the Book of the Black. And take part in the birth of the first Black Lantern. "

― Scar, Geoff Johns (Blackest Night)