Green Lantern Corps, Vol. 1

Black Lanterns have risen from the Green Lantern crypts, and the Lanterns on Oa are hard pressed to defend themselves. A member of the Indigo tribe named Munk has arrived however,a nd is helping to disperse as many Black Rings as he can. But when the Black Lantern is fully charged, it's minions change their focus. They leave any ongoing battles to focus their attention on the Central Power Battery. And when a desperate gambit by Kyle and Guy is foiled by the Alpha Lanterns, Kyle is forced to make a desperate sacrifice to prevent the power of the Green Lanterns from being extinguished forever.