What do you think of my action adventure supernatural horror story novel? This story will be about a supernatural medieval German prince who is a great warrior as a knight. As a knight, he was one of the best martial artists and individual warriors for his time. He is an expert in a form of swordsmanship that uses a two-handed double-edged longsword as a weapon. He is also an expert in unarmed hand to hand combat martial arts such as ones that involve punching, etc. As a supernatural being, he is a demonic lord in that he is a very powerful demonic sorcerer who has many dark supernatural powers. He doesn't age and is immortal due to his supernatural powers. He lives forever. He stopped aging at 18-years old. Aside from his supernatural powers, he also creates and commands very large numbers of diverse dangerous dark supernatural beings who are all extremely loyal to him. Due to his great power as a demonic lord, many humans gave him the title, "The Prince of Darkness." Before the year 1376 AD, he locked himself in a room that can never be opened from the outside due to a very powerful supernatural spell he put on the room. The room is inside a Gothic palace he lives in. He then started to sleep for a very long time and this sleep continued to the modern age until some idiotic group of tourist American college frat boys decided to go to his palace, found a supernatural way to open the room he was sleeping in, opened the room using the supernatural way, and messed with his sleeping body in disrespectful way. His sleep was disturbed. As a result, he was awakened from his sleep and he hated that his sleep was disturbed. He got enraged to the point that he turned into a very terrifying dark supernatural monster. He then brutally killed all of the American college frat boys. He got so angry that he decided to kill all humans on Earth so he unleashed some of his dark supernatural powers and all of his dark supernatural beings on all of mankind. Due to the fact that the ones who disturbed his sleep were Americans, he decided to attack the USA first. The first places in the USA to be attacked and devastated were New York, Las Vegas, Washington, and Texas. Due to this, a group of American mercenaries who were former military special forces soldiers decided to fight the German dark sorcerer knight prince to save humanity. The American mercenaries then attacked the castle and the palace of the German dark sorcerer knight prince where the German dark sorcerer knight prince is. By the way, the architecture of the palace and the castle is Gothic. The story will be about the American mercenaries exploring the castle and the palace of the German dark sorcerer knight prince while at the same time, fighting through the German supernatural prince's army of dark supernatural beings. As the American mercenaries explore the castle and the palace, they uncover many secrets and information about the supernatural German knight prince such as his life, his past, his army of dark supernatural beings, his relatives, etc. The final fight scene would be the leader(who is the protagonist) of the American mercenaries having a hand to hand combat duel to the death against the supernatural German prince. In this duel, the supernatural German prince is using a medieval two-handed double-edged longsword while the mercenary leader is using a modern military combat knife. The duel will take place in a room(in the palace of the supernatural German prince) where the supernatural German prince's throne is. So what do you think of my action adventure supernatural horror story novel? Is there any American movie that is similar to this when it comes to theme and plot? Please tell me because I really want to see some examples that can help me develop this novel of mine.