Diana and Matthew's relationship moves forward. But something's about to happen that will cast them both further into danger.

Matthew crosses a dangerous line when he returns to Oxford. Diana discovers his dark past, before something unexpected tears them apart.

Matthew and Baldwin race to save Diana from Satu's dangerous dark magic. In Oxford, Sophie shocks Agatha with a confession.

Diana's aunts' home gives up all sorts of secrets when Diana and Matthew pay a visit. Danger looms as Juliette breaks free from Gerbert.

With danger at every turn, Diana and Matthew are forced to run. But will they escape in time? Series finale.