* A self-published or obscure work: If it's a newer or lesser-known title, it may not be widely listed online.
* A title you're misremembering: There are many vampire novels, and you might be recalling the wrong title or author.
* A work in progress or unpublished manuscript: If it's an unpublished work, it wouldn't be readily available.
To help me find the book you're looking for, please provide:
* Any other details you remember: Author's name, genre, cover art, etc.
* Where you might have encountered the title: A library, bookstore, online platform, etc.
With more information, I might be able to assist you in finding "The Vampire Stalker."