When Rowena Vincent, Warrior Princess and teenage runaway, flees her Newcastle home to trace her missing dad in Dublin, she sets off armed only with an old photograph. But Rowena has a knack for attracting trouble and, alone in a strange city, her problems begin when Hefty O'Hara appoints himself as her minder. Protection comes at a price, and before long Rowena is on the lam again, this time accompanied by chambermaid and newfound friend Texy.

The trail leads them to rural Ireland, where Rowena finds work in the nearby 'nunvent' - home of the Blue Spark Sisters - but this is no ordinary convent, and Rowena's arrival sets off a train of bizarre events which throws her already messy life even further into chaos...