Black Butler: Public School Arc Episode 4 English Dubbed Episode Title: His Butler, Colluding Episode Description: Having joined the prefects' social circle, Ciel inquires about Derrick. Their reaction makes him and Sebastian suspect that they're hiding something about his disappearance. Edward, the brother of Elizabeth, Ciel's betrothed, figures that Ciel is really here as the Queen's watchdog, not a student. Ciel and Sebastian learn from the other students that Derrick and a few other students were suddenly transferred to the Violet Wolf dorm six months ago by the principal. Out of options, Ciel and Sebastian cause a fire at Violet Wolf's dorm to force the students to evacuate, hoping to draw Derrick out.