Royal Blood - Bruce Woods

Historical and fictional characters come together and change the future of Africa forever. Renowned actress Lady Ellen Terry, detective Sherlock Holmes, financier Cecil Rhodes, hunter/naturalist Frederick Courtney Selous, King Lobengula, and a mysterious, undead adventuress named Paulette Monot become chess pieces in the Great Game, which takes the form of Africa's First Matabele War. 
'It is unlikely that anyone will ever read this. In fact, if you are perusing these pages, and you’re not one of the Kin (“vampires” to the uninitiated), it is almost certain that there’s either been some sort of terrible mistake or that I (Miss Paulette Monot) have decided to take a mortal lover. The latter is perhaps more likely. Lucky you.'