The crossover "DC One Million" introduced readers to a possible future in the 853rd century, where many solar systems were defended by heroes who either carried the legacy of modern-day DC heroes or were literal descendants, such as the Justice Legion-A. In "DC One Million" #4 (1998), super-powered animals appeared and were said to be "veterans" of the Justice Legion of Super-Zoomorphs who were being led into battle by "Proty One Million and Master Mind" (the latter a possible descendant of the worm villain Mister Mind).