Yes, there could be. In some Harry Potter fanfictions, authors might explore the use of black magic in unique ways. A character squinting could be a sign of them concentrating on a black magic spell or perhaps they're under the influence of some dark force related to black magic. It adds an element of mystery and danger to the story.
Well, it depends on the specific fanfiction. There are so many different takes on the Harry Potter universe in fanfiction. Some might use the idea of a squinting character in relation to black magic to show that they are trying to see through some sort of black magic veil or illusion. Others might use it as a quirk of a character who is dabbling in black magic secrets.
Often, there's the theme of temptation. The character who is squinting might be tempted by the power of black magic. It could also be a theme of corruption. As they delve deeper into black magic, shown perhaps by their squinting concentration, they start to become corrupted. Additionally, there could be a theme of mystery, with the squinting adding to the air of mystery around the black magic they are involved in.
In many fanfictions, Harry Potter squinting at Voldemort could be a sign of intense focus. It might be that Harry is trying to read Voldemort's next move, or perhaps he's looking for some sign of weakness. For example, in some stories, Harry's squinting could be related to his newfound magical abilities that he's using to analyze Voldemort's magic signature.
There could be some out there, but it's not a common enough trope that I can immediately name a popular one. Usually, when it comes to Harry Potter fanfiction involving snakes, it might be more about his Parseltongue ability in general rather than this very specific'squinting at a snake' situation. However, it's possible that in some niche communities or on certain fanfiction websites, there could be some hidden gems with this scenario.
One possible fanfiction could be that Harry Potter is kidnapped by a dark wizard who has some strange power that makes Harry squint. Maybe this wizard is trying to use Harry's unique connection to Voldemort for some dark ritual. Harry has to use his wits and the few spells he can manage while squinting to try and escape.
One interesting fanfiction could be 'The Unspoken Glances' where Harry's squinting at Malfoy is a sign of his growing suspicion about Malfoy's secret activities. It delves into their complex relationship and how their interactions change over time.
The plot could be that Harry is kidnapped by a vengeful Death Eater who survived the war. This Death Eater wants to use Harry to bring back Voldemort in a new form. The squinting part could be due to a curse the Death Eater placed on Harry to limit his vision and thus his ability to escape. Harry has to rely on his other senses and his past experiences to outwit the Death Eater.
It might also indicate a newfound curiosity. Fanfiction often takes characters in different directions. Harry could be squinting at Malfoy because he's starting to see a different side of him. Maybe he's noticed something that makes him think Malfoy isn't all bad, and the squint is his way of trying to understand this new Malfoy better.
It could mean a fan - made story (fanfiction) where Harry Potter is looking closely or suspiciously at a snake. Maybe in this fanfiction, the snake has some special significance, like being related to Slytherin or having some kind of magical power that Harry is trying to figure out by squinting at it.
There could be a fanfiction where Harry is studying in the library with his broken glasses. He's squinting hard to read the old, faded texts. Hermione notices and offers to help him fix his glasses with a spell she's been researching. But Harry refuses at first, wanting to do it on his own. This creates a bit of tension between them, and as they argue, Ron comes in and tries to mediate. It could be a comical and character - driven fanfiction scenario.
He could be squinting because he's trying to read Shacklebolt's expression carefully. Harry has been through a lot and has learned to be cautious. Maybe he's looking for any sign of deception or unease in Shacklebolt's face.