Rachel says "Hm, it seems I misjudged you Klein."
Koko says "Honorable."
Emelia says "Yes, Koko, he is."
Justin says "Alright, we are with you."
"Great! Brother Raven, if you don't mind can you describe the terrain of the mine and its surroundings?"
Brother Raven describes the mine as a great pit being dug into a mountain with no regard for the surroundings. As he describes it I can't help but think humans are destructive no matter what world they are in. He also describes the surrounding terrain, which is all mountains and hills.
That means we should be able to take out their patrols without raising an alarm. The trick is going to be dealing with the remaining guards while keeping them from using the slaves as a shield. If we can manage that the rest should be pretty easy.