Disclaimer: see last chapter's disclaimer.
Harry fell out of the fireplace and quickly stepped away from it. Seconds later Ron showed up and after him, Ginny. Last of all came Aranea and Mr. Weasley. With a call from Mr. Weasley, Mrs. Weasley appeared from upstairs closely followed by Hermione.
Hermione dashed to Harry and hugged him tightly. "I heard the Dursley didn't follow their orders," she said.
"Yeah, well. They did for a while, but a dementor invaded Privet Drive and destroyed the window in my room with some kind of jet of magic from its hand. It was weird. It could speak English too," Harry replied.
With that, everybody insisted that he tell his story. They all gathered at the kitchen table, and after Mrs. Weasley put a large plate of sandwiches on the table, Harry began telling of his last two adventurous days. He left out a few details, like his conversation with Aranea. When he was done, everybody (except Aranea) sat back and digested this amazing story. Then, the inevitable question arrived, "Who is Aranea?"
Harry answered carefully, "She's a Hogwarts student that moved near Privet Drive a little while ago."
Ron turned to Aranea and asked, "What house are you in?"
"Slytherin," Aranea hesitantly replied.
There was a long silence. Eventually, Ron muttered suspiciously to Harry, "Why are you talking to the slime of Hogwarts? They support You-Know-Who."
Harry replied, "Don't worry about Aranea being a traitor. She tells me that she is an outcast of Slytherin because of her ideals."
"Can you prove that?" Ron asked.
"What will it take for you to believe my story?" she asked.
"Isn't Harry's word good enough?" Hermione interrupted.
Ron looked at Harry and nodded at him while saying, "I trust you Harry."
The Weasleys relaxed. Then, Ginny, Hermione, and Mrs. Weasley stood up and welcomed her to the Burrow. Mr. Weasley smiled at her. Ron sat in his chair thinking. Harry would never bring a member of their sworn enemies into their house. He looked at Aranea, who was looking anxiously at him, and smiled at her. "Welcome," he said.
Hermione turned the converstion to Harry's battle with the dementor again," So you really hurt a dementor and released the imprisoned souls from within it instead of just driving it away."
Harry nodded. He was getting annoyed with everybody's interest in how he injured the dementor. "It's not that impressive," he muttered.
"No," said Mr. Weasley, "All of the ministries in Europe have searched for ways to kill the dementors because they never die on their own. That is why there are so many in the world. They were created by the dark arts. However, only one was created at first. It was released, and they have been increasing in number ever since. The creator of these foul creatures was said to be Drema, but it has never been proven. Your discovery might change the fate of the war with dementors."
"Who is Drema?" Harry asked.
Hermione answered as if it was the answer to a question in transfiguration. Of course it was well researched and historically accurate. The story was long and was something even History of Magic teacher, Pofessor Binns, barely taught. But Hermione had heard of him, wanted to learn more, and (as everybody knows) turned to books of ancient magical history.