Lina Townend, the orphaned natural daughter of somebody, somewhere, has been in care all her life. For the first time, at nineteen, she's pretty happy, living with kind-hearted antique dealer Griff, who combines the roles of grandfather and employer. But there is still something missing: she wants to find her real family, despite Griff's fears that she may uncover things she'd rather not know. When Lina comes across a page from a rare sixteenth century book, Natura Rerum, which she remembers from early childhood, she snaps up the chance to buy it. She has a vivid memory of being taken as a child to a stately home, where a man she believes must have been her father gave her this book to keep her quiet. If she can locate the book, maybe she can find her father. However, in the weeks that follow, a series of violent burglaries and attacks make Lina realise that what she found might have been more than just a link to her father. Undeterred, she carries on in her dangerous search, but will it lead her to happiness, or bitter disappointment?