and so he was told the shameful tale of their long ago prisonnow left to its own devicessuffering still the yearly insanity of making more and more and more to slake the unslakable thirst of the host , still imprisoned within , still without as much as a thought or hope or dream of leaving ; still keeping every spirit of bountiful life bound to it by the same thirst , fed and fed again for one full moon out of every twelve .