In a fanfiction about Snape at a Death Eater meeting, a great plot twist could be related to his memories. What if during the meeting, a spell is cast that starts to make Snape relive some of his worst memories, like his time being bullied as a child or his relationship with Lily. This not only makes him vulnerable in front of the Death Eaters but also could expose his true feelings. Another possibility is that Snape discovers a hidden prophecy during the meeting that the Death Eaters are planning to use for their own gain. He then has to figure out a way to either steal it or destroy it without getting caught. And, it's possible that Snape's loyalty to Dumbledore is tested when the Dark Lord offers him something extremely valuable at the meeting, like the power to bring Lily back to life. This would put Snape in a very difficult moral and emotional dilemma.
One possible plot twist could be that Snape is actually there to spy on the Death Eaters for Dumbledore, but the other Death Eaters start to suspect him. Maybe he accidentally reveals some knowledge that only a spy would know. For example, if he knows about a secret mission that was supposed to be only known within the Order of Phoenix. Another twist could be that Snape has a secret agenda of his own that is different from both Dumbledore's and Voldemort's. He might be trying to manipulate the situation within the Death Eater meeting to his own advantage, perhaps to gain some sort of power or information that could be used as a bargaining chip later. And finally, there could be a twist where a new character shows up at the meeting who has some sort of connection to Snape's past, and this changes the dynamics of the meeting completely.
Well, a plot twist could be that Snape uses Polyjuice Potion to disguise himself as another Death Eater at the meeting. This way, he can move around more freely and gather more information without being detected easily. But then, the real Death Eater he's disguised as shows up at the wrong time, causing chaos. Or, Snape could find out during the meeting that one of the Death Eaters is actually a double - agent for the Order of Phoenix, just like him, but they don't know about each other. This could lead to some interesting interactions and potential misunderstandings. Also, Snape might be forced to perform a dark magic spell during the meeting that he really doesn't want to do, and this could have unforeseen consequences on his mental state and his ability to continue spying.
He could be suspected by Voldemort. Since Voldemort is very paranoid, an injury at a meeting might make him think Snape is up to something or being careless in a way that could endanger their plans.
One possible plot twist could be that the Death Eater she marries is secretly a double agent. He might be working against Voldemort from within the Death Eater ranks and Hermione discovers this. Their relationship could start as a way to get closer to the Death Eater secrets but then turn into real love.
Another aspect could be an unexpected bond forming between Hermione and the Death Eater. As they are forced to spend time together, they might start to understand each other on a deeper level. This could lead to a moral dilemma for the Death Eater, especially if he starts to develop feelings for Hermione. He would then have to choose between his loyalty to the Death Eaters and his new - found connection with her.
Snape could be very cautious in his interactions. He would be constantly aware of the power dynamics. He might flatter the more powerful Death Eaters subtly to avoid suspicion. For instance, he could compliment Bellatrix on her loyalty to the Dark Lord. At the same time, he might try to intimidate the weaker ones to show that he's not to be trifled with. He might use his knowledge of the Dark Arts to his advantage in these interactions, like casually mentioning a difficult spell he's mastered to gain some respect.
There's also the possibility that it was an accident. Fanfiction often plays with the idea of magical accidents. Maybe a spell misfired during a demonstration or a fight that broke out among the Death Eaters that Snape got caught in the middle of, and as a result, he got injured.
Perhaps Hermione's transformation into a Death Eater is a result of a time - travel accident. She goes back in time, something goes wrong, and she ends up being influenced by the Death Eaters of that era. This would create a complex web of cause and effect in the fanfiction.
One common plot twist is that Hermione was actually a double agent all along. She pretends to be a Death Eater spy but is really gathering information for the Order of the Phoenix. This adds an element of mystery and excitement as the other characters in the story are initially unaware of her true motives.
There are several. Some focus on Snape's early days as a Death Eater. For example, in one fanfic, it details how he was recruited, his initial thoughts on Voldemort's ideology, and how he gradually started to question it. It also shows how his relationships with his fellow Death Eaters were formed and evolved over time.
One possible plot twist could be that Hermione discovers a hidden prophecy that only she can fulfill to save Snape. This prophecy might be related to some ancient magic that Snape has unknowingly become a part of. Another twist could be that in order to save Snape, Hermione has to team up with some of her former enemies, like Draco Malfoy, who also has a vested interest in Snape's survival for some reason. And perhaps the most unexpected twist could be that Snape's salvation is somehow linked to Hermione's ability to time - travel, which she uses to go back and change certain events that led to Snape's peril in the first place.
One possible plot twist could be that Lily marries Snape out of a sense of duty. Maybe she discovers some long - hidden secret about Snape's past that makes her feel obligated to stand by him. For example, if she finds out that he made a great sacrifice for her family in the past that no one else knew about. Another plot twist could be that it's a marriage of convenience. The wizarding world is in danger, and their union is seen as a way to bring two powerful magical lineages together to fight against a common enemy. Or perhaps Snape has some unique magical ability that Lily needs in order to achieve a certain goal, and marriage is the only way to access it.