The Blood Gospel: The Order of the Sanguines Series. You'd think (hope) that the whole vampire- as- whatever genre had run its course. But, don't miss this. It weaves pagan religion, with contemporary Catholicism, with historical figures. I'm very bad about starting series in the middle. (The Prisoner of Azkaban anyone?). As a series, you must start with this, book one. You won't be sorry.