While Cassie and Thelma strategize, new characters are introduced at the school while old ones depart. Troy, convinced that Cassie's child is his, left the school at the end of the first series. Jo Watkins, having "really let herself go," is seldom seen at school as she has become Azazeal's live-in nurse and nanny. The school gains a new chaplain, Jez Heriot, who doesn't "wear the uniform" except when conducting services and also teaches Ethics. When Jo effectively disappears, David Tyrel asks Jez to take her classes as well. The students don't initially realize that he is a priest, and Roxanne is quite taken with him, so much so that she can't help but seduce him even after the truth is known. A new student arrives at Medenham: Ella Dee. Her wardrobe instantly wins her points with the boys, evokes jealousy in the girls, and makes the faculty uncomfortable. Thelma is mildly attracted until she realizes that Ella can see her. There are other anomalies: Ella's tuition is paid by a corporation and her family background is unknown. She also seems to know entirely too much about Cassie... and Azazeal.