An Englishwoman is found dead in a house near Rome.

Her distraught husband enlists the help of his closest friend, Chris Bronson, who discovers an ancient inscription on a slab of stone above their fireplace. It translates as 'Here Lie the Liars.'

But who are the liars? And what is it they are lying to protect?

Pursued across Europe, Bronson uncovers a trail of clues that leads him back to the shadowy beginnings of Christianity; to a chalice decorated with mysterious symbols; to a secret code hidden within a scroll.

And to a deadly conspiracy which - if revealed - will rock the foundations of our modern world.