Dare to enter a fabulous tale of angelic magick, dark ritual and strange, inedible food. Thirteen year old Lucy Blake is an orphan with a talent for telling lies, or as she prefers to call them, inventions. Our heroine has the power to move between worlds and can conjure changes in reality simply by telling stories. Not that her life isnt interesting enough already. Before her fourteenth birthday comes round shes going to steal a priceless work of art and find herself pitched in combat with the winged hordes of heaven. An evil angel has kidnapped Lucys friend Fenny, but the mistress-of-lies has a few problems of her own. Her wafer-thin stepmother wants the family boarding house, and is prepared to have her lying stepdaughter committed to an insane asylum in order to get it. And the despicable Doctor Veraciter is only too willing to help, because hes noticed something interesting about Lucys lies.
Bentley Priory, a penniless private detective, thinks the talent might be linked to Lucys real mother, who vanished from a locked room years ago and has never been seen since. In a move that soon has the police on her trail, Lucy comes into possession of a manuscript that existed before the world was created. Raziel, the angel reputed to have written the book, is prepared to do anything to get it back, and Lucy and her friends are forced to flee into a sinister world known as Assiah, where even the handbags aren't quite what they seem. Surrounded by tales of lost rivers, fabled dragons and mythical cities, they explore a strange world of shew stones, talking maps, and truth cabinets.
What exactly is the Light and where did it come from? Will we ever discover the identity of the Grand Architect of the Universe? And who are equally mysterious Sisters of Perpetual Mercy? Why are they so interested in Lucy that they're willing to destroy an entire world in order to get their hands on her?