The conclusion of the 3-part "Purgatorio," featuring Death of the Endless. The powers that would rule Lucifer's cosmos come together in a final apocalyptic battle, in which old debts will be repaid and ancient grudges settled. But it may be that the fate of the world, and of the Morningstar, will be determined in a more subtle and dangerous conflict when a familiar adversary decides to turn the tables…on herself.
Meleos stands up to The Basanos, so that Lucifer can make his getaway and further his plans, and the Lilim come to his aid, fighting the undefeatable Basanos. Elaine is confirmed dead back in London. In Heaven, Michael Demiurgos talks with his father, clearly angry with Yahweh. And Lucifer proves his genius once again, when now he is left powerless but uses leverage to bring about the downfall of The Basanos.
— Description from Comic Vine community (comicvine.gamespot.com).
