The following are the answers to the question presented:
a brooding hero
a mysterious house
Since Gothic novels usually have characters that are overcome by anger, sorrow, surprise, and especially terror, having a brooding hero would be a perfect setting. Also, Gothic Novels are typically set in an atmosphere of mystery and suspense so a mysterious house is also falls into place as a characteristic of a Gothic novel. I hope this helps and if you have any further questions, please don’t hesitate to ask again.