A former slave from the Gurkish Empire with golden eyes, exceptional combat ability, and a hatred of the Gurkish so deep and consuming that it has become her entire identity. Ferro does not trust anyone, does not want anyone's help, and is not interested in friendship or alliance - she is interested in killing Gurkish. She joins Bayaz's group reluctantly and remains reluctant throughout. Her arc is about what happens when the thing that keeps you alive - pure, focused hatred - is also the thing preventing you from living. She is one of Abercrombie's most uncompromising characters and one of his most affecting.