Éva Kálvin was only a child when her mother was murdered during a purge of vampires from their village. Fifteen years later, she receives summons from her long-lost grandfather, to join him in the cold north of Victorian England. But the past is not all that haunts her. Struggling to adapt to a new culture, and to contain the bloody secret that has followed her from Austria-Hungary, she reluctantly joins forces with a dangerous and enigmatic vampire. The stakes slowly become higher, and Éva must soon make an unforgiving choice before darkness descends upon her forever.

As the latest in a 250 year-old line, vampirism has always been normal to Hanna Bernstein. She and her father are the bearers of Die Gift: a collection of unpublished theses detailing the most secret and mysterious condition in history. But even she is unprepared for the twisted world of demons which threatens to swallow her. When she breaks her family's legacy to save the life of an old friend, she inadvertently catches the attention of a dangerous enemy. Forced to abandon all she knows and go into hiding in Switzerland, Hanna's decisions will matter more than ever before. It will take all her courage and knowledge to protect not only herself, but everyone she loves.

Bianka Farkas lost much more than her best friend and mobility the night a dangerous vampire descended on her house. Left partially paralysed and with a mysterious scar on her neck, not even her dreams are safe from the sadistic figure who attacked her. Fleeing her home in Budapest, she takes refuge in London, facing her new terrifying reality with a surprising ally. ​ But the demon has set his sights on her, tormenting her day and night, no matter how far she tries to run. A dark secret unites the two of them, separated by a century, and time is running out as the vampiric condition spreads through Bianka's broken body. As the shadows descend, it will take all her strength to find the truth.