In such a fanfiction, Harry might gain the physical abilities of a basilisk. He could have its incredible strength and speed. Maybe he would also inherit the basilisk's venomous nature, which could be both a weapon and a danger to those around him. Also, his appearance would change drastically, with the snake - like body and menacing eyes.
The story could develop with Harry trying to figure out how to turn back. He might search for ancient spells or magical artifacts that can reverse the transformation.
In some fanfictions, the Basilisk might be re - imagined as a misunderstood creature. For example, it was only acting on instinct or under some dark magic's control. A story could focus on a group of students who discover this truth and attempt to rehabilitate the Basilisk, facing many challenges along the way from those who fear the Basilisk's deadly gaze.
The basilisk eyes in Harry Potter fanfiction often symbolize death and petrification. Some fanfictions might explore what would happen if someone managed to resist the petrifying power of the eyes through some unique magic or strong will. It could lead to interesting character development as they face this deadly threat.
One challenge could be the basilisk's own will. Even if Harry has the ability to control it, the basilisk is a powerful and ancient creature with its own instincts. It might resist Harry's control from time to time, especially when it comes to situations that go against its natural behavior, like being made to not attack innocent students.
Well, it might be related to his connection with the Dark Lord. Since Voldemort was able to control the basilisk before, and Harry has a unique connection to Voldemort through the scar. This connection could be manipulated in some way in the fanfiction, allowing Harry to take over the control of the basilisk from Voldemort.
One great fanfiction could be where the Phoenix helps Harry Potter against the Basilisk. Maybe the Phoenix uses its healing tears to cure those who were petrified by the Basilisk. It could add a new and interesting dynamic to the story.
In some Harry Potter fanfictions, the 'Maw of the Basilisk' might be a sort of lair. Since basilisks are large and fearsome creatures, their maw (which means a large, menacing mouth or opening) could be the entrance to a hidden place. It could be filled with all sorts of magical elements that are part of the fan - created lore, like ancient spells or magical artifacts that the basilisk guards. Authors might use it as a central location for adventures in their stories, where the characters have to face the perils within.
In some fanfictions, the Basilisk could be reimagined in a different light. Maybe it's not just a mindless monster but has some sort of deeper purpose or connection to the Patronus magic. For instance, a fanfic could show that the Basilisk was once used in an ancient spell that now affects how modern - day Patronuses work. This would add a whole new layer of mystery and intrigue to the Harry Potter universe.
Perhaps a fanfiction where the Basilisk is not a solitary monster but part of a larger, more complex ecosystem in the Chamber of Secrets. There could be other magical creatures that depend on the Basilisk in some way, and when the Basilisk is in danger, these other creatures come to its aid. This would change the whole dynamic of how the characters interact with the Basilisk and the Chamber of Secrets.