In certain comic arcs, Barry takes actions that lead to the destruction of the Speed Force. This often has significant consequences for his powers and the superhero universe.
In this fanfiction, it might be that an enemy has found a way to manipulate the Speed Force to harm the Flash. For example, they could be using some sort of device that alters the nature of the Speed Force in the Flash's vicinity. So, the Flash has to not only deal with the pain but also figure out who is behind this and stop them before the damage becomes irreversible.
He could try to isolate himself from the Speed Force for a while. By cutting off his connection, he hopes to stop the pain, but this also means losing his speed powers temporarily. It's a risky move, but if he can figure out how to protect himself during this time, it might be a way to start healing.
Speed Demon was one of the villains of The Flash. He was a supervillain who used extreme speed and had once appeared in the story of The Flash. As for the background and abilities of the Speed Demon, further information was needed to confirm it.
The speed of the minibus in The Flash did not exceed the speed of light. The reason why time travel was possible was mainly based on the following physics theory:
Relativistic theory: Relativistic theory believes that the mass of an object is proportional to its speed and the closer the speed is to the speed of light, the greater the mass of the object. This means that if an object approaches the speed of light, it will become very heavy and require more energy to accelerate it. However, the theory of relativity also states that when an object approaches the speed of light, its time and space will become relatively curved, which means that in some cases, the object may travel through time.
2. Space-time Distortion: When an object approaches the speed of light, it will cause space-time distortion to other objects. This distortion could cause the passage of time to slow down or allow objects to pass through time. In The Flash, the minibus was able to warp time and space by traveling at close to the speed of light.
The reason Barry was able to travel in time was because when approaching the speed of light, space-time distortion would occur, which could allow objects to travel through time. This theory was widely supported by scientists and was fully reflected in The Flash.
In certain comic universes, the Speed Force has faced significant events that could be interpreted as its 'death'. However, comic storylines are complex and can vary greatly.
Barry Allen can steal speed in comics, but it's not a common or straightforward ability. It often occurs within complex storylines and with specific conditions and consequences.
Ruby would be a likely candidate. She's already known for her speed and agility in combat. If she were to be affected by the Speed Force, it would enhance her existing abilities to a whole new level. She could move so fast that she becomes almost invisible to her enemies, and her scythe attacks would be even more deadly with the added momentum.