It has been some years since Jonathan and Mina Harker survived their ordeal in Transylvania and, vanquishing Count Dracula, returned to England to try and live ordinary lives.

But shadows linger long in this world of blood feud and superstition - and, the older their son Quincey gets, the deeper the shadows that lengthen at the heart of the Harkers' marriage. Jonathan has turned back to drink; Mina finds herself isolated inside the confines of her own family; Quincey himself struggles to live up to a family of such high renown.

And when a gathering of old friends leads to unexpected tragedy, the very particular wounds in the heart of the Harkers' marriage are about to be exposed...

There is darkness both within the marriage and without - for new evil is arising on the Continent. A naturalist is bringing a new species of bat back to London; two English gentlemen, on their separate tours of the continent, find a strange quixotic love for each other, and stumble into a calamity far worse than either has imagined; and the vestiges of something forgotten long ago is finally beginning to stir...