VOLUME 34 - BATMAN: BIRTH OF THE DEMON, PART 2 Originally published as Birth of the Demon, December 1992.
Poisoned and dying, Batman journeys halfways around the world to unlock the centuries-old secret that will bring a final confrontation with his immortal foe... the demon Ra’s al Ghul. As the Dark Knight attempts to destroy every Lazarus Pit on Earth, the 600-year-old story of how the Demon was born is revealed.
BATMAN #235 Originally published in September 1971.
In his second appearence Ra’s al Ghul turns to the Dark Knight for help in tracking down a former ‘employee’ who carries a deadly plague.