Hi and welcome to the Forum!
I think you've stolen the two objects that laid in the room of Josephine, right? The third object id carried by Josephina, so you must kill her. She will drop a "Fight-Stick" (sorry, I don't know the english name of that object, but it's like a branch..) If you have problems killing her, try to use the Skill deadly gift (the skill for laying traps) and use some scorpion traps..
