" In Hastor I have paid a good price to see one of these creatures and now I found myself in a position where I should very gladly pay a good deal more not to see one, but from the noise he was making in the shaft beneath me it appeared to me that he was determined that I should have a free show and he a free meal. "

― Edgar Rice Burroughs , The John Carter of Mars Collection (7 Novels/Bonus Audiobook Links)