Traveling with the dead

Once Don Simon Isidro, the oldest vampire of London, asked James Escher to help him save the vampire counterparts and escape himself.
Now Lydia Esher asks Isero about the return service: having set off in the footsteps of the Austrian spy, her husband hit the deadly trap.
Hoping to rescue it, Don Simon and Lidia set off on the road that runs through the entire continent: from London to Vienna, and from there to Constantinople, where the living and the dead begin the struggle for power. And now the vampire and mortals will have to deal with the conspiracy, where the fate of the entire British empire is put on the map ...
The second novel of the famous Barbara Cheal of Hambara "James Esher", which was awarded the prize of Lord Ruthen, presented for the best works about vampires