Published from 2009 to 2010, Blackest Night was a DC Comics crossover event written by Geoff Johns with art by Ivan Reis. The storyline centers on Nekron, the Lord of the Unliving, and his agent Black Hand, who unleash the Black Lantern Corps, reanimated corpses of deceased heroes and villains wielding black power rings.
The event forces the seven Lantern Corps representing different emotions to unite against this existential threat. Key characters include Hal Jordan, Barry Allen, and the various Lantern Corps leaders. The conflict culminates in the creation of the White Lantern Corps and the resurrection of several characters.