From the description:
"When Michael Crawford discovers his bride brutally murdered in their wedding bed, he is forced to flee not only to prove his innocence, but to avoid the deadly embrace of a vampire who has claimed him as her true bridegroom. Joining forces with Byron, Keats, and Shelley in a desperate journey that crisscrosses Europe, Crawford desperately seeks his freedom from this vengeful lover who haunts his dreams and will not rest until she destroys all that he cherishes. Told in the guise of a secret history, this long-awaited tale of passion and terror is finally back in print after more than 20 years."
So, I guess that this really should be science fiction and fantasy, because this is the clearly the latter. 2 supernatural books in the KDDs today. 4.2 stars on 43 reviews, 433 WhisperSync for voice enabled pages.