Following the stellar success of Geoff Johns's Green Lantern run, DC Comics leaned into the character for some of their biggest events. This led to the mega-hit story Green Lantern: Blackest Night, a 2009 event that brought the zombie apocalypse to the heart of the DCU. From the arrival of the living embodiment of death to the resurrection of DC's fallen heroes and villains, the story remains an iconic horror saga in the annals of the Justice League and Green Lantern Corps.
Source：https://www.cbr.com/green-lanterns-blackest-night-is-the-perfect-halloween-story/
