This is a very good recipe for a book with daventures outstanding but J. Heska sest not satisfied, fortunately for us, this universal recipe.
The author, through an agile and simple pen (without being simplistic), sharp, biting dialogues was able to mix the stories dune so that we follow the course even sil must wait until the end to have retroactive lighting. Despite this "mixture", J Heska follows a frame adjusted to the millimeter. The chapters (Tower 30 St Mary Axe, London 5 days before GEAD or Paris, France, 14 years earlier) enable us to understand and dexpliquer some correlations between the characters.
The characters are strong, the quon appreciate or not. Fish is perhaps a little too big in some intrigue, some turnovers. I recognize: Safia plays chess very well !!!! But beware, the king is not dead yet !!!!
The moral in all this: revenge is a dish best served cold and any resemblance to characters or existing facts. (Or not).