Another theme is loyalty. They both have deep loyalty to Hogwarts but express it in different ways. Snape's loyalty is complex and often misunderstood, while McGonagall's is more straightforward. Fanfictions explore how these different loyalties can cause friction between them. In a lot of these stories, their loyalty also brings them together in times of crisis. For instance, when Voldemort's forces threaten the school, they have to find a way to cooperate despite their differences. This exploration of loyalty makes the fanfictions really engaging.
In some fanfictions, their rivalry might be explored in the context of the Hogwarts Houses. For example, McGonagall being a proud Gryffindor and Snape a Slytherin. There could be a story where they have to resolve a conflict between the two Houses, and their different approaches to the situation create a lot of tension and drama.
One great Snape vs Voldemort fanfiction is 'The Dark Mark's Secret'. It delves into Snape's complex relationship with Voldemort. Snape is constantly in a precarious position, having to play the double agent. The story shows how he uses his wits against Voldemort's brute power. Another one is 'Snape's Hidden Alliances'. It focuses on how Snape manages to outmaneuver Voldemort in some crucial situations. The characterizations are really well - done in both of these, making them engaging reads.
One great 'Snape vs McGonagall fanfiction' is 'The Clash of Professors'. It shows their different teaching styles and how they often butt heads in Hogwarts' corridors. The author does a great job of portraying their personalities as we know them from the original books.
In many fanfictions, they are often portrayed as equally powerful in different ways. McGonagall's strength lies in her traditional magical skills and her leadership, while Snape's strength is more in his unique knowledge and his ability to adapt to difficult situations. So it's not always clear - cut who is stronger.
Snape could use his position as a double agent to mislead Voldemort about Harry's whereabouts. McGonagall would be more likely to directly defend Harry. She might gather the other teachers and students at Hogwarts to form a united front against Voldemort. Together, they could create a magical shield around Harry, like the one that protected Hogwarts during the battle, using their combined magical power.
The main thing that makes Snape vs Voldemort fanfiction interesting is the contrast between the two characters. Snape is complex, with his own motives and a hidden side. Voldemort is pure evil. So when they interact, there are always mind games and power plays. For example, Snape has to constantly deceive Voldemort, and the tension this creates is exciting.
Well, in a fanfiction, a plotline could be that Percy Jackson is on a quest and somehow crosses paths with Voldemort. Voldemort senses Percy's power and wants to study it. Percy, not knowing much about the wizarding world, initially mistakes Voldemort for just another monster. As they interact more, they realize that their worlds are more intertwined than they thought. Another plot could involve a powerful artifact that both of them are after. The artifact has the power to change the balance of both their worlds. So they are in a race against each other to get it, but along the way, they start to understand each other's motives and might even consider working together to keep the artifact out of the wrong hands.
Their interaction would be intense. Merlin, being from a different era and having a different view of magic, would likely be appalled by Voldemort's use of dark magic. Voldemort, on the other hand, would probably see Merlin as a threat to his power. Merlin might try to reason with Voldemort at first, but when he realizes that Voldemort is beyond redemption, he would use his magic to stop him.
Hermione is often a very popular character. She's known for her intelligence and resourcefulness, and in fanfiction, she might come up with new spells or strategies to help Harry in his fight against Voldemort.