Sci-Fi Web of Deceit (A Marvelous Tale)

For decades, a secretive organization has worked from the shadows- known to few, they eliminate all who would oppose what is 'right', arranging assassinations and performing secret projects with the singular purpose to glorify their ideals no matter the cost others 'must' pay for them to do so. Yet how long, until such monstrosity finally meets its end? Will the weapons they've spent so long cultivating delay the inevitable, or will they be the downfall of their 'masters'?