Stone garden

On an island far from the civilized world stands a fortress with 3 meter thick stone walls, no windows, no outside garden, and a single entrance which is only accessible with one-use-submarine drones

A prison build especially for superhumans

unknown to the public. There are records, but only a hand full of people knows the details about who was send there and who is still alive.

There is no entertainment for the prisoners.
There are no human guards, everything is fully automated and controlled with robots.
Food arrives once a week with degradable submarine drones.
Being send of to the Stone garden means a life sentence filled with eternal boredom.

Getting in is easy, the only exit is death

the North Atlantic ocean

They say it is always raining and the wind is always howling. However, no one is sure because there are no windows and the only way to the island is with one-time-use submarine drones

in the middle of the north Atlantic ocean

_

the prison was first founded in 2094 and destroyed and rebuild on numerous occasions.

the most recent building was established 2286

People rarely speak about the prison and if they do it is with fear and awe.