When Niamh McDonald opened her eyes in the dark cave, she didn't expect to be a prisoner so far away from home. She didn't expect to be rescued either.Niamh was kept in the darkness, not knowing what creature has captured her. Then her life spins out of further control as she discovers her family from California have been lying to her all this time – she's adopted.Niamh returns to California, shocked and traumatised. She cannot forget that she is adopted. And then, out of nowhere, a stranger visits her to tell her she isn't human.Niamh cannot take any more surprises, so she decides to go back to her place of birth – Wales. She needs her questions answered. Her life transforms further as she finds that Sprites have existed throughout centuries and she is not the only one who can see them.So why is she connected to Ania, the scrawny Russian girl who rescued her from the dark cave?