Annabeth could be one of his main allies. She is smart and would help Percy understand the more complex aspects of his role as Horseman of Death. Grover might also be there for him, using his nature - related powers to help Percy in places where the power of death interacts with the natural world.
His friends from Camp Half - Blood would likely be his allies. They have been through a lot together. Nico di Angelo, who has his own connections to the Underworld, could be a great ally. He could teach Percy about the secrets of the Underworld and how to better control his powers as the Horseman of Death. Also, Chiron, with his vast knowledge, would surely offer guidance and support to Percy in this new and dangerous role.
In this fanfiction, Percy's mother could be an unexpected ally. She has always been there for him, and even in his new role as Horseman of Death, she would provide emotional support. The gods might also be involved in a strange way. Some of the more benevolent gods, like Athena, could see the importance of Percy's role and offer their help secretly. His friends from his quests in the past, like Tyson, could also stand by his side. Tyson's strength and loyalty would be valuable assets as Percy faces the challenges that come with being the Horseman of Death.
One possible plot could be Percy being chosen as the Horseman of Death due to some ancient prophecy. He might have to travel to the Underworld more often and deal with the spirits there in a new way. Maybe he has to collect the souls of those who are supposed to die but are being held back by dark magic.
Some minor gods related to the earth like Demeter could be allies. She has her own powers over the earth and could teach Percy some of her techniques. Also, the nymphs, such as the water nymphs and the tree nymphs, could be allies. The water nymphs could help with the water sources within the earth (like underground rivers) and the tree nymphs could help Percy take care of the forests. And let's not forget the pegasi. They could be used for transportation when Percy needs to quickly travel across his earthly domain.
Annabeth could definitely be one of his main allies. Her intelligence and strategic planning would be invaluable in a fight against Olympus. Also, Grover might be there, using his skills as a satyr to gather information and support from other nature - related beings. Some of the less - well - known demigods from Camp Half - Blood could also join in, seeing Percy as a chance for a new order.
Annabeth could definitely be one of his allies. She's smart and resourceful, and her knowledge of architecture and strategy would be useful no matter where in the universe they are. She could help Percy figure out the layout of strange alien cities or fortresses.
His friends from Camp Half - Blood would be his allies for sure. Annabeth, with her strategic mind, would be invaluable. Grover, the satyr, could help Percy communicate with nature spirits which could be useful. But also, some of the minor gods who feel left out by the major Olympians might side with Percy. For example, Hecate could use her magic to assist Percy, seeing him as a chance for a new order in the Olympian world. There's also Tyson, Percy's cyclops half - brother, who would be a strong and loyal ally.
Grover could also be an ally. His connection to nature might give Percy some unique advantages in Tartarus. Additionally, some of the less hostile creatures in Tartarus, like the friendly Cyclopes, could side with Percy. They might see him as a more just ruler compared to the chaos that usually reigns in Tartarus. Also, Chiron, with his vast knowledge and experience, could offer guidance from afar, which could be considered a form of alliance.
Annabeth could be a strong ally. She's always been by Percy's side, and her intelligence would be crucial in helping Percy navigate his new role as the son of death. She could research ancient texts to find out more about the powers and responsibilities that come with it.
His friends from Camp Half - Blood like Annabeth could be his allies. Annabeth is smart and strategic, and she would be able to offer valuable advice as Percy goes through the process of becoming a minor god.
Eragon could be one of Percy's allies. Eragon has his own set of powers and knowledge of Alagaesia. Percy and Eragon could combine their skills, with Percy's control over water and Eragon's magic and sword - fighting abilities. They could also share their different cultural knowledge, Percy from the world of Greek mythology and Eragon from the world of Alagaesia.
Frank Zhang could also be an ally. He is a Roman demigod with shape - shifting abilities. His strength and loyalty would make him a valuable teammate for Percy. Additionally, Nico di Angelo, who has ties to both the Greek and Roman worlds, could be an important ally. His knowledge of the Underworld and his ability to shadow - travel could help Percy in various situations, whether it's getting information or quickly moving around in the Roman camp.