Black Fortress

What is Black Fortress?
Black Fortress is the Fort/Prison of Captain 'Emperor' Kwagar. It was once his main prison block where he migrated thousands of prisoners to. The Fort is rumored to hold The Kraken itself. It is unknown really waht the Fort is like so its obviously gonna get stubbed, however the fort goes on and on and on

Where is it?
Classified

Appearnces:
The Wildrat Saga