Batman: The Doom That Came To Gotham #3 CGC 9.8 WP Scarce Hard-to-find three issue mini-series inspired by H.P. Lovecraft

The finale of this Lovecraftian Elseworlds Tale has the Batman locked in mortal battle with the mad sorcerer Ra's al Ghul who has called forth an entity as old as time itself. Wayne, Oliver Queen and Harvey Dent have made terrible sacrifices in order to save their beloved Gotham. Will it be enough?