I'm not sure if there is a specific well - known novel that has exactly this combination without more context. But it's a very common trope in horror writing to have a spooky location like a house and some sort of terrifying antagonist, which cannibals could be. Writers might use the claustrophobic setting of a spooky house to heighten the tension when there are cannibals involved. They can play with the idea of the characters being trapped and hunted by these cannibals, creating a truly horrifying scenario.
Yes, there could be. Many horror novels often feature spooky houses and the presence of cannibals can add to the horror element. For example, in some slasher - type horror novels, a group of people might find themselves trapped in a spooky old house where they discover that there are cannibals lurking about.
It depends on the specific novel. Some novels might focus on the spookiness of a house without having cannibals. However, if it is a particularly dark and gory horror novel, then it's very likely that there could be cannibals in the spooky house. There are many sub - genres within horror literature and this concept could fit well into some of them.