It's Hal Jordan vs. Hector Hammond, and our Emerald Knight will need to summon all of his willpower to face down the psionic madman. Check out Grant Morrison and Liam Sharp's grand finale more than two years in the making! This tale touches on every plot thread from the entire run, and it's fully charged with fantasy, sci-fi, and Green Lantern lore. Say it with us now, "In Brightest Day, In Blackest Night..."