This should last you about 2 weeks, and the stories are very high interest. The stories are The Yellow Wallpaper, Diary of a Madman, The Black Cat and The Possibility of Evil. My students loved it!
What you get-A vocabulary list with the words defined, a vocabulary test, an objective multiple choice 15-20 question quiz on each story, and a 60 question objective test.
The test on the stories emphasizes the literary techniques of horror plus other literary devices used, some biographical info on the authors, and a variety of other types of questions expected on a literature test.
Discussing the vocabulary should take 2 days, taking the vocabulary test 1 day, 6 days of giving the story quiz and going over it,1 day for the test, and 1 day for going over it. Of course this will vary with the ability of each class.