The balance in nature would be disrupted. Artemis is the goddess of the hunt, the moon, and nature. Her death could cause strange phenomena in the natural world, like animals going wild or the moon's cycle becoming erratic. This would not only affect the demigods but also mortals who depend on the stability of nature.
The story would take a very dark turn. Percy is a central figure, and his death would leave a huge void. His friends would be devastated. Annabeth, for instance, would likely be consumed with grief and seek revenge. This could lead to a new conflict within the demigod community.
Percy's character would likely become more in tune with nature. He'd be more reserved perhaps, as he grows up in an all - female group. His sense of honor might be more shaped by Artemis' values, such as protecting the weak and the natural world.
Well, it could be a really interesting and terrifying addition. Maybe it could be some kind of ancient monster that was locked away long ago in the world of Percy Jackson. It could be released by some dark magic or an evil demigod. The xenomorph's ability to adapt and its deadly nature would make it a formidable foe for Percy and his friends.
One possible motive could be some sort of mind control. Maybe a powerful enemy has the ability to control Percy's actions and forces him to go after Artemis. This would add an element of tragedy as Percy would be acting against his will.
One possible plot could be that the entire Greek pantheon is thrown into chaos. Percy might be seen as a huge threat, and other gods and goddesses would either try to hunt him down or form alliances with him out of fear or a desire for power. Demigods would be forced to take sides, leading to massive battles among them.
The morale among the demigods would be greatly affected. The Hunt is often seen as a symbol of strength and unity for female demigods. If Percy kills them, it might create a divide between male and female demigods, leading to internal conflicts within the demigod community. Also, it would change the way demigods view Percy. Some might see him as a hero for eliminating a potential threat, while others would see him as a murderer for killing the Hunt.
Percy is often characterized as his brave and sometimes impulsive self. He might be shown as being a bit in awe of Artemis at first. Artemis, in fanfiction, is usually depicted as the powerful and independent goddess of the hunt. She has her own set of rules and values that she adheres to strictly.
Percy's relationship with the male demigods would change significantly. Some might see him as a traitor for joining the Hunters. However, he would also gain new allies among the Hunters themselves. His relationship with Artemis would be that of a mentee and mentor at first, but as time goes on, it could develop into a more family - like bond. And his relationship with the gods would be different too, as he's now under Artemis's protection, which might make some gods view him in a new light.
Percy Jackson is really good at improvising in battles. He might use the environment to his advantage. If they are in a place with water sources, like near a river or a lake, Percy can summon huge waves to knock Galbatorix off his feet. And considering Percy has faced powerful foes before, he won't be intimidated easily. He could also use his speed and agility, which he has developed from his years of fighting monsters, to dodge Galbatorix's attacks and get in close for a killing blow.
Well, initially, Percy might be in awe of having a sister like Artemis. He would try to get closer to her, but Artemis would be cautious. As time passes, they could bond over their shared love for the natural world, in different ways though. Percy loves the sea and Artemis the forest. They could exchange stories about their experiences in their respective domains. This could lead to a deeper connection and eventually a strong, unbreakable bond where they would support each other through any difficulties, be it in the world of the gods or among the mortals.