The "Siege of Darkness" consisted of two subsequent stories in which the Midnight Sons fought groups connected with the two major villains, Lilith and Zarathos. In the first story arc, covers were black with vague outlines, and the Midnight Sons fought the Lilin who were invading the earth in a mysterious smoke emanating from Cypress Hills Cemetery. Lilin included in this arc include Bad Timing, Martine Bancroft, Blackout, Dark Legion, Meatmarket, Nakota, Outcast, Pilgrim, Sister Nil, Stonecold, and Bloodthirst, who was possessing Morbius. In the second story arc, covers featured a dripping blood design, and the Midnight Sons fought The Fallen, a group loyal to Zarathos. The Fallen include Atrocity, Embyrre, Metarchus, Patriarch, and Salomé.