Bloodline - Kate Cary

This is the original vampire romance: go back to where the bloodlust began! When nineteen-year-old John Shaw returns from World War I, he is haunted by nightmares - not only of the horrors of battle, but of the brutal midnight exploits of his superior, Captain Quincey Harker. When Harker appears unexpectedly in England and lures John's sister, Lily, to Transylvania, John must confront the truth. Only the love of pure Mary can save him from Count Dracula's poisonous bloodline. But the line goes further than John and Mary can possibly imagine. A new seductive evil walks among the living...