After Mirren Sutherland finds a priceless antique book in her great aunt’s attic, she is contacted by Jamie McPherson, who is hopeful she might be able to find another one- a book lost in his own house. He doesn’t even know the name of it, only that it is so valuable it could potentially save the entire estate from ruin, and time is running out. On arriving at Jamie’s vast crumbling home in the highlands of Scotland (on the family train, no less), Mirren meets rival bookseller Theo Palliser, whose motives are not remotely honourable; and sets out on the quest.