Why did The Admiralty dwell in a separate Hall?
Originally, it was just a plot device, so that when Peter blew them up, he wouldn’t take out all of Starfleet HQ. As time went on, I came to realize this must be a pretty rotten place. More, most ST stories have the Admirals and the Cadets all within a stone’s throw of one another, probably by design. So The Hall is not just evil, maniacal people, and the center of a pedophilic cult. It is a betrayal of Starfleet tradition, making the story both more AU and more ST at the same time.