On her return to New Zealand, Anira finds herself mysteriously affected by legendary spirits emanating from the natural geology and untamed thermal forces of Rotorua. And they have a job for her to do.
Soon Anira finds others like her, people young and old who are similarly called by the kaitiaki. Together they are caught up in a race against the developer intent on destroying the natural springs that are the home of the ancients and the source of their powers.