THESE ISSUES MAY SHOW SIGNS OF SHELF-WEAR. PLEASE TAKE INTO CONSIDERATION BEFORE PURCHASE. "THE EXTINCTION MACHINE" part 4! In the center of the Earth, Superman faces three doomsday machines set to tear the world apart, while Earth's two Green Lanterns discover just what a purged planet is truly like. The Kindred are awake and hold the truth about the beginnings of humanity.