In The Vampire Girl Next Door, Mark fell in love with Sylvia, the beautiful, but quirky girl next door, not realizing that she was a vampire who killed his last neighbor. Now, in The Vampire Girl in London, they fly from Mark's San Francisco to Sylvia's London. They tangle with terrorists, are shadowed by a CIA agent, and are pursued by a vampire-hunting cult. Even more challenging, they must cope with living in a mansion full of Sylvia's vampire friends-some of whom she can't really trust. And Mark still has to deal with Sylvia's sexual hijinks. Will Mark and Sylvia's love be enough to survive it all?