One possibility is that Percy in Tartarus by himself could encounter some long - forgotten or ancient entities. These could be primordial beings or spirits that have been trapped there since the dawn of time. He may have to form uneasy alliances with them in order to escape, or they might try to use him for their own purposes. For example, an ancient spirit might offer him a way out in exchange for a part of his soul, which would put Percy in a difficult moral dilemma.
He might face numerous terrifying monsters. Tartarus is full of dangerous creatures, and without his friends, Percy would have to rely solely on his own skills and the power of his demigod abilities to fight them off.
If Percy were alone in Tartarus in fanfiction, the story might focus on his inner struggle and growth. He'd face extreme dangers and might discover hidden strengths within himself.
Percy living alone might also lead to him having a different relationship with the gods. He may become more independent from them, not relying on their occasional help. This could make the gods view him in a new light, either as a threat or as a more self - reliant and respected figure. He could start to question the gods' motives and actions more deeply, leading to some interesting confrontations or discussions.
The fanfiction could also explore Percy's identity crisis. He's known himself as the son of Poseidon for so long, but now being the son of Gaea and Tartarus would shatter that identity. He would have to re - evaluate who he is, what his purpose is, and how he fits into the world of demigods. This internal struggle could be a major part of the story, with Percy constantly fighting against the darker impulses that come from his new parentage while also trying to find a place where he can be accepted and still be himself in some way.
Well, one possibility could be Percy facing his inner demons. In Tartarus alone, he might have to deal with the memories of his past failures and the fear that comes with being in such a desolate place. He could encounter strange and terrifying creatures that test his combat skills and his will to survive.
In fanfiction, if Percy Jackson is sent to Tartarus, he might face countless deadly monsters. Tartarus is a really dangerous place. He would have to use all his skills and powers to survive. Maybe he'd meet some old foes there, and it would be a great test of his courage and determination.
He uses his wits. Percy has always been clever, and in Tartarus, he'd use that to his advantage. He'd find ways to outsmart the monsters, like using the environment against them.
He might face extreme physical challenges like battling powerful monsters on his own. In Tartarus, there are many dangerous creatures that could be a huge threat.
He might face a lot of challenges. For example, without his friends, he would have to deal with the monsters on his own. Maybe he'd struggle in classes because he's used to being on quests rather than studying. Also, he could become a loner and be misunderstood by his classmates.
He might face numerous terrifying monsters. Tartarus is full of dangerous creatures in the fanfic world, and Percy would have to fight for his survival all by himself.
He could emerge with enhanced physical abilities. The Styx is known for bestowing invulnerability in certain areas, and in Tartarus, this could be magnified. He might be able to withstand more powerful attacks from his enemies.