"Are you ready?" Belialthorn asked and when his companion nodded, he started leading them towards the prison.
It was indeed a massive prison and it was built atop the raised platform like some kind of throne. Belialthorn thought it must have been some sort of mocking, either from the Castle or the Castle's master to Collector.
The smell hit him first and he wrinkled his nose at the smell of unwashed bodies, piss, and shit. It smelled of death in there.
"How long have they been in there?" Belialthorn asked nobody in particular. "It smells horrible."
There are four inside the prison. Four humans.
The prison's bars and door are made of the same black-green stone as the majority of the whole Nightmare.