Answer:
Scary
Explanation:
Well i dont know that book, but since it has horror in the name, im thinking its a horror book. So the reader would be scared, since its horror.
The correct answer is ironic tone.
Shakespearean tragedies obviously do not have cheerful endings given that they are tragedies - the endings are always bad and sad. Shakespearean comedies do not have a melancholy tone given that they are happy and delightful. Comedies also do not have characters who experience feelings of guilt - they mostly appear in tragedies. So what comedies and tragedies do have in common is ironic tone - the tone of mocking something or someone.
If you want to know the answer, there are plenty of articles you can find by just doing a little bit of research using Google.
The strange case of Dr Jekyll and Mr Hyde is an example of gothic literature Hope this helped