In the travel fanfiction, Percy might be terrifying because he has a past that haunts him during the travels. He could be haunted by some sort of travel - related trauma. So, his erratic behavior due to these inner demons makes him seem terrifying. He might lash out or act in strange ways when something triggers a memory of his past while they are on the road.
Well, it could be that the fanfiction takes the original Percy Jackson world and twists it in really dark ways. Maybe it gives the characters horrible fates or puts them in extremely dangerous and disturbing situations that are far from the relatively light - hearted nature of the original series.
It could be that the fanfiction creates a scenario where all the demigod camps are destroyed and the remaining demigods are hunted like animals by some super - powerful and malevolent force. This kind of apocalyptic and hopeless situation is very different from the more positive and adventure - filled world of the original 'Percy Jackson' series.
Maybe Percy in the travel fanfiction decides to go into an ancient, cursed temple that everyone else is too afraid to enter. He drags his friends along with him, and as they enter, all sorts of spooky things start to happen, like strange noises and cold drafts that seem to be some sort of warning.
Well, for one, it offers a fresh take on the familiar Percy Jackson story. Fans of the series are always eager to see more of Percy's adventures, and dimension travel provides a whole new set of adventures. It also allows for character development in new and interesting ways. Percy can learn from his experiences in different dimensions, grow as a character, and bring back new knowledge and skills to his own world. This aspect of growth and discovery is really what draws people to this type of fanfiction.
The unknown is a big factor. When you travel through time, you don't know what you'll find. You could end up in a war - torn era, or a time when a deadly plague is spreading. For instance, if you travel to the Middle Ages during a major plague outbreak, the lack of modern medicine and the general chaos would be extremely scary.
Often, it's the reality and the fact that it actually happened that makes a true story terrifying. Knowing that these horrors are not just fictional but part of the real world can be very disturbing.
It could be his quick thinking. Maybe in the fanfiction, Percy is always the first to come up with solutions to difficult problems.
Well, it could be that the fanfiction portrays Hermione in a really dark or uncharacteristic way. Maybe it gives her some extreme and scary powers or a really twisted personality that goes against the original Hermione we know from the books.
It could be its unique characters. The characters in Percy might be very well - developed and interesting, which attracts readers.
His attitude. Percy in fanfiction often has a 'don't mess with me' attitude. He doesn't shy away from a fight and is always ready to stand up for what he believes in. He'll face any opponent, no matter how powerful, without hesitation.