One consequence could be that the wizarding world is in shock. Dementors are usually just sent away or repelled, not killed. So, the Ministry of Magic might be very concerned about this new development and start to investigate Harry.
The death of the dementors could have an impact on the Azkaban prison. Since dementors are the guards there, their absence might lead to a security crisis. Some of the more dangerous prisoners could try to escape without the fear - inducing presence of the dementors. Also, the balance of dark and light magic in the area around Azkaban could be disrupted. It might attract other dark creatures or cause some strange magical phenomena.
On a more personal level for Harry, he might face a lot of mixed reactions from his friends and teachers. Some might see him as a hero for getting rid of such dangerous creatures, but others might be worried that he has overstepped some unwritten magical boundaries. His actions could also put him in the crosshairs of dark wizards who were using the dementors for their own purposes. They might see Harry as a threat and try to retaliate against him.
Chapter 230, ", Level Up! Level 6 Spiritual Energy, A Storm is Coming!", is the clearest early answer because Psychic Caster finally turns buildup into a real advancement. Early on, [Event Activated: The Storm Approaches] [The cultists who revere the.... By the end, Without foreseeing any battles that would require his personal....
Chapter 275, ", Mobilization", is the clearest early answer because it turns Union's situation into a concrete plot event. It opens with In Weixing City, Osenia was inspecting the factory construction... and closes on Just this assurance alone was enough to ensure that the vast majority.... The key payoff is that the chapter closes with The time for full mobilization of war potential hadn't come yet, just as Patel had said.
Chapter 298, ", Tianma's Savior?", is the clearest early answer because it turns Spiritual Energy's situation into a concrete plot event. It opens with The best way to lessen the blame was, of course, to find the missing... and closes on As long as the incident didn't unfold on Rage Owl Star, he was....
Chapter 298, ", Tianma's Savior?", is the clearest early answer because it turns Tianma's Savior's situation into a concrete plot event. Early on, The best way to lessen the blame was, of course, to find the missing.... By the end, As long as the incident didn't unfold on Rage Owl Star, he was....
Chapter 267, ", it's time once again for the much-anticipated card drawing segment", is the clearest early answer because it turns Sentinel Mecha's situation into a concrete plot event. A useful checkpoint is the way the scene starts with With the presence of "Spacefarers," similar tasks had become more... and follows through with ———— Found a bug, the Chainsaw Sword was already drawn, so change the....
Chapter 390, "Might as Well Call it Gu Hang Star Zone", is the clearest early answer because it turns United Government's situation into a concrete plot event. The chapter gives readers a real answer by opening on After the ground portion of the Starport was overrun, this became... and ending on Moreover, the Tianma Fleet didn't even need to continue exchanging....
Chapter 418, ", Consider Joining the Alliance?", is the clearest early answer because a shaky connection becomes usable in the plot. Early on, Merely relying on the orbital bombardment in addition to the.... By the end, After they defeated a Defense Army unit on the planet's tropical....
Chapter 229, "The Incarnation of the Evil God", is the clearest early answer because it turns Georgette's situation into a concrete plot event. The setup is I almost thought they were all veterans," Georgette said to Matins., but the pressure keeps building through After the capture of the surface portion of the storage center, while....
Chapter 425, ", The Seven Horses Pact Great Spread", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Indeed, those words had been spoken by Gu Hang. and follows through with I had considered using the game Stellaris, but it wasn't quite....
Chapter 321, ", Spiritual Energy Transmission", is the clearest early answer because it turns Sentry Mecha's situation into a concrete plot event. It opens with The special forces elites of the 10th Brigade didn't have the same... and closes on Their existence was not merely to defend the Fortress—she had larger....