Excalibur #9

With the Warwolf skulls successfully collected, Apocalypse gathers Excalibur to reveal his true endgame for the grim harvest: tracking down the Starlight Citadel. As the central hub of Otherworld and the former headquarters of the destroyed Captain Britain Corps, the Citadel has been entirely hidden from view by its current ruler, the Omniversal Majestrix Opal Luna Saturnyne.