One possible element could be a ghostly figure. Maybe a lady in white is often seen in the hallways or by the windows at 10 Wilkie Terrace.
Well, without having the exact details, perhaps at 10 Wilkie Terrace there was a history of unexplained deaths. People might have reported feeling a sense of dread and coldness as soon as they entered the place. There could have been some sort of curse associated with the building, causing misfortunes to befall those who lived there. For example, appliances malfunctioning on their own, or doors slamming shut without any wind or human interference.
Well, in a terrace love story, an ending could be that they travel the world together, always looking for terraces in different places to relive their special moments. However, it could also end with a big fight on the terrace, and they never speak to each other again. On the other hand, they might decide to build a future together, starting a business on a terrace - like a small art studio or a coffee stand.
Well, it could be that the Lc9s Pro seems to have a mind of its own. For example, it might start making calls or sending messages to unknown numbers without the user's input. Also, the device could start heating up uncontrollably and make strange hissing sounds, like it's about to explode or something more sinister.
Ghosts could be a possible element. In 1928, superstition was still quite prevalent, and a horror story might involve the apparition of a vengeful spirit.
Ghosts. There could be a ghostly figure that appears at a certain time, like midnight, on the platform.
Unexplained noises. Guests might have heard strange creaking sounds, as if someone was walking on the floorboards above them when there was no one there.
Well, the couch itself could be possessed. Maybe there are evil spirits trapped in it, like in some horror stories where objects hold grudges or are vessels for the undead. Another possibility is that the couch has a dark history, like someone was murdered on it, and now it's cursed.
One possible element is a haunted location. The princess might live in a spooky castle filled with secret passages and rooms where strange things happen. Another element could be a malevolent force like a demon or a powerful sorcerer who targets the princess. For example, the sorcerer might use dark magic to make the princess see terrifying visions.
Ghosts could be an element. In many horror stories, ghosts play a major role. They can haunt a place, like an old building in Navsari, and cause fear among the people living nearby.
One possible element could be the use of his unique musical sounds as a trigger for the horror. His music often has intense and somewhat otherworldly beats that could be associated with something sinister.