In "Madame Xanadu", the title character calls out to her while chained up and denied access to her youth potions during the French Revolution. As she is a survivor from the days of King Arthur, she grows very old very quickly without them. She summons Death and reads her own cards, interpreting her Death card as predictive of her future destiny on earth. Death is so amused by this interpretation that she grants Madame Xanadu immortality, revocable any time Xanadu wishes. Death appeared in "Action Comics" #894, which was written by Paul Cornell. Gaiman helped write Death's dialogue to ensure that her characterization remained consistent with "The Sandman". In the story, while searching for a black power ring, Lex Luthor encounters her. She appears again in issue #900 and in "The Flash" (vol. 3) #6, part of the "Brightest Day" crossover.