"Wait, where's the prison?" Aerin asks. "They're all over the castle; I'd advise getting out or staying with me if you don't have something specific to do here. Don't think the two of you--or even the three of us--can retake the castle, because we can't. One of you might want to use this," she holds up the falchion. "He put some kind of oil on it to attack me, right before he died. Where's the prison?"