In this episode, the House is briefly shaken up by the arrival of its next guest - the 18-year old redheaded magic student Caitlyn, whom Tristan's lucky dream has suitably pulled out of an audacious... and dangerous experiment that may or may not have caused great harm to her own native lands. Despite being shy and terrified of her actions, Caitlyn's curiosity and friendliness quickly help her get settled in, as does her involuntary opening of two more rooms in the House, including a library with tons of books on the magical arts (as well as some of a decidedly more lewd character, which seem to be of as much interest to the young wizard as the serious stuff). Meanwhile, life goes on with the other inhabitants as well, as Rae allows Tristan to join her for some naughty fun in the bathroom and incites him to think of some fun evening activities, while Naomi finds a way to invite Tristan inside her own dreams for a change...