It's Derry and it's the Hallowe'en break. And Aimee McCourt Logan's cross-border exchange partner (yeah, she goes to that kind of school) Caoimhe is coming to visit.

More to the point, she's bringing her dream-god brother Darren with her.

Meanwhile, Aimee is trying to keep her co-best friends' lives on track and she's implementing a new health and beauty regime (any day now).

Armed with her trusty stack of lists, a hot chocolate and the all-powerful Facebook - and with a little hindrance from her cat, Rainbow - nothing is impossible. This is a hilarious and honest depiction of life as a fifteen-year-old, when virtual friends sometimes seem more important than real ones ...