Realms of Fantasy
called "The Light of a Thousand Suns." In it, a group of magic wielders were making (voluntary) human sacrifices to neutralize nuclear bombs. One person sacrificed per each bomb neutralized. As a part of the ritual, the volunteers were thrown into "the throat of the world," a movable, bottomless pit. Today, while following a link about sinkholes
, I saw a National Geographic
picture of what I had in mind, a giant sinkhole that formed beneath Guatemala. If there was such a thing as the throat of the world, it would look something like this.