Good Lady Ducayne Compare And Contrast

For my essay, I want to compare A.C.Doyle’s: 'The Adventure of the Sussex vampire' with M.E. Braddon’s: 'Good Lady Ducayne'. Both stories cover a similar theme – vampires and blood-sucking – which, however, in both cases prove to be caused by different elements.
Doyle’s story is presented by a first-person narrator and draws on the preceding knowledge of the reader by making references to the fictional world presented in Doyle’s previous novels. It is a detective story, where the protagonist finds rational explanations for all the presented mysteries. The story begins with Holmes getting a letter from a man called Mr. Ferguson, whose Peruvian wife was seen sucking on their baby’s blood. He has no other explanation for this act, rather than his wife being a vampire.
Ferguson’s home and meet his wife, their baby and also Mr. Ferguson’s son Jack who he has from his previous marriage. Holmes soon finds out the truth – the Peruvian wife was sucking on her child’s blood because she was trying to stop the poison from spreading, poison from a poisonous dart that his half-brother shot on his brother because of his extreme jealousy. Holmes saw how jealous he was of his brother when seeing his angry reflection in the window while the father was looking at the baby. Holmes has, however, deduced all of this even before their Sussex visit, this trip only served as a source of confirmation. The main protagonist knew what was going on the whole time.
In contrast, the protagonist of Bradon’s story had not known about her situation until the very end of the story. 'Good Lady Ducayne' is presented by a third person narrator and could be described as a sensation novel – it produces a moment of sensation. At the