Sacrilege

Heretic -turned-spy Giordano Bruno has lived life looking over his shoulder - so he knows instinctively when he's being followed. His stalker is Sophia Underhill, the woman he once loved, accused of murder and on the run.
With the leave of Sir Francis Walsingham, Queen Elizabeth's spymaster, Bruno travels to Canterbury to clear Sophia's name. But when a series of mysterious crimes strike the city Bruno senses a far bigger puzzle emerging.
As he hunts for the real killer through Canterbury's ancient streets, it seems all roads lead to the Cathedral. There, in the shadow of England's holiest shrine, Bruno will approach the heart of a sinister and powerful conspiracy...