The Red Lantern Corps are first mentioned during the "Sinestro Corps War" storyline. Foreshadowing another major crossover event in the DC Universe, former-Guardian Ganthet reveals the Blackest Night prophecy to Hal Jordan, Guy Gardner, John Stewart, and Kyle Rayner. The prophecy describes a War of Light among seven Corps powered by the lights of the emotional spectrum. Part of the prophecy reads: "A force of hate will rise as the red lantern is anointed in blood, the bearer's rage unfiltered and unchecked. "
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