Sketch, a light-infused energy, loves the boy Matt. she watches him from the Core and wishes she could be part of his world.Sent out from the Core for training in the human world of North London, Sketch seizes the opportunity to prove herself, and show Matt how she feels.If she fails to learn what it's like to be a human, she will be trapped in the outer world forever.Will Sketch succeed? Can she show Matt she's the one for him? And will she ever be able to return to her life in the mysterious realm of the Core?