These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Mona finds a skeleton at the bottom of a well. The corpse pit in the dungeon could also count as one.
If all comedy is removed, Mona's situation could be the plot of a horror movie: she is an innocent 19 year old girl who was killed and turned into an undead by a creepy, deranged vampire and imprisoned in a tower for years, with no one but Froderick and her captor as companions. It's a wonder she hasn't developed Stockholm's syndrome by now.
Snark Bait: Rufus the gargoyle. He kind of brings it on himself.