The Pen [2]
The Union gave the name 'The Pen' to their incarceration facility. Because the prison was home to some of the most dangerous criminals ever known to humanity, it required the most stringent level of control and security.
Any one of the people who were locked up had the potential to pose a significant risk to both the national and international security of several countries.
Because of the obvious dangers involved, the location of the facility was kept a secret, and only a select few individuals were aware of its precise whereabouts.
"This should be the place…"
I count myself among the fortunate few in that I was one of those who knew where the location was. The fact that the location was identical to the one in my original world made things a lot easier for me.