Outbreak
From the back cover "Ben, Emily and Jack are looking forward to a quiet Christmas back in London, celebrating their victory over the vampire hordes. But it is not to be. Camazotz may have been vanquished, but a new plague of terror is gripping London’s streets. The undead are rising, and they’re hungry! This new evil is even more dreadful than the last, and its vile creatures seem impossible to kill. Can the trio hope to defeat the foul menace that is looming over their city?"
Read more about this topic: Vampire Plagues Series