"Your trade in human lives is an abomination, but I am going to offer you a chance to make better choices," Kreyu tells them.

"These people will be free, and all of you will swear to never again engage in such work. Or you can die here, if you would prefer."

The Captain snarls, goes for the sword at his hip. Some of the others make similar moves, but most don't seem terribly keen to fight.