A seemingly ordinary family harbors a dark secret: they are vampires. They choose not to drink blood despite their natural cravings, but one day, their truth comes to light.

In a world cleaved in two by a massive barrier of perpetual darkness, a young soldier uncovers a power that might finally unite her country. But as she struggles to hone her power, dangerous forces plot against her. Thugs, thieves, assassins and saints are at war now, and it will take more than magic to survive.

Detective Sherlock Holmes and Dr. John Watson join forces to investigate a murder at Buckingham Palace. They soon learn that they have only four days to solve the case, or the queen will become the next victim.