Sixteen-year-old Maya is the youngest of four siblings and is brought up by her mother and father. Early on in her life, however, she discovers that she is not her parents' natural child; as the result of a series of strange errors, her parents were sent home from hospital with Maya rather than the baby her mother actually gave birth to. Maya's feverish imagination leads her to speculate on the possibility that the swap was not accidental at all, but part of a secret genetic experiment.

Inspired by Tennyson's poem and Loreena McKennitt's beautiful song...

This book follows on from Grinvill's Tin. Two years after defeating the Finfolk on Lorna, Erica is living in a family that is a shell of what it once was. The sombre atmosphere is broken when George and his mother move into the abandoned house next door. Engaging and mercurial, George becomes more and more part of Erica and Hamish's lives, but are he and his mother to be trusted? And why does Erica continue to have visions of Sedna?

Erica lives with her brother Hamish on a windswept Scottish island. Growing up surrounded by tales of the supernatural, she begins to discover her own powers.

In 1743, an English nobleman, banished to Scotland, finds himself involved in a quest to defeat a mysterious threat.