Selene and the rest of the Blackwater Brigands are found during the side-quest "An Unexpected Voyage." The Hero can take the longsword from her body after she is killed. Alternatively, they can convince Selene to surrender; by answering questions correctly about her operation. Once this is done, she will surrender and give the Blackwater Blade to the Hero as an award. However, if any of the questions are answered incorrectly, she will attack the Hero on sight, making killing her the only way to receive the blade.