He could get seriously injured. In some fanfictions, he might break a bone or two. It would also likely lead to him being out of the Quidditch match if it happened during one.
One consequence could be that he loses confidence in his flying abilities. After falling off his broom, he might be hesitant to get back on it right away. In some fanfictions, this event could be used as a way to develop his character, showing his vulnerability. His enemies might also take advantage of this situation. If Voldemort's followers saw him fall, they could try to attack him while he's in a weakened state.
Dumbledore could also be a savior. Given his powerful magic, he could easily appear at the scene and use a spell to stop Harry from hitting the ground too hard. Or perhaps one of the teachers at Hogwarts, like Professor McGonagall, who is strict but caring, would use her transfiguration skills to create something to break his fall.
In some fanfictions, his fall off the broom could be a turning point in the story. It might lead to him discovering a new magical ability. For instance, he could unconsciously use a form of magic to slow his fall or even levitate himself slightly. This newfound ability could then be explored further in the story, perhaps making him a more powerful wizard in unexpected ways.
In certain fanfictions, Harry's fall could be a part of a larger conspiracy. Maybe someone tampered with his broom on purpose. This would then lead to an investigation, with Harry and his friends trying to figure out who was behind it. Along the way, they could uncover other secrets about Hogwarts or the wizarding world in general, which would add more depth and complexity to the plot.
He could be seriously injured or even die. Falling from such a height can cause multiple fractures, internal bleeding, and severe head trauma.
Maybe it was a jinx. In the wizarding world, there are many spells that could make a broom go haywire. Some jealous rival in a Quidditch match could have cast a spell on his broom to make him fall.
A plot twist could be that when Draco falls off his broom, instead of Hermione helping him directly, she uses a spell to make his broom catch him at the last moment. This shows her intelligence and also makes Draco question her motives. Later, he discovers that she didn't want to expose their growing friendship to others. Another twist could be that Draco's fall was actually a planned thing by someone who wanted to harm him, and Hermione has to figure out who it was while taking care of Draco. This adds a mystery element to the story.
The man is likely to sustain very serious injuries. The height of 9 stories means he will hit the ground with great force. This can lead to broken bones all over his body, including his pelvis and skull. There's also a risk of spinal cord injury which could result in paralysis. And the shock to his body from such a fall can cause his heart to stop or other life - threatening conditions.
Well, first of all, the impact when he hits the ground is going to be tremendous. Due to the height of 11 stories, the speed at which he falls will be very high. This means that bones are likely to break upon impact. His body may not be able to withstand the force, resulting in internal organs being damaged. There's also a high chance of serious head injuries which could lead to immediate death or long - term brain damage. If by some miracle he survives the initial impact, he'll still be in a very critical condition and need immediate and extensive medical treatment.
The possible consequences are numerous. She could have fractures all over her body, especially in the limbs. There's also a risk of spinal cord injury which might lead to paralysis. Additionally, she may experience a great deal of pain and shock immediately after the fall. Emergency medical attention would be crucial, and she would likely need to be hospitalized for a long time for treatment and rehabilitation.
One possible consequence could be that his identity is revealed. If he was using the henge for undercover purposes or to hide his true self, then dropping it would expose him. His friends or allies might be shocked if they didn't know his true form. Another consequence could be that his enemies might take advantage of his revealed state and attack him more easily, as they now know exactly who he is.