Accidental Magic and Aunt(y) Kitty
Harry and Hermione got off the train hand in hand with Neville and Brenda following. They walked down the dark path Brenda almost tipped over into the lake once and Ronald had made an appearance. Saying loudly how he and Harry where going to be best mates. When Harry had "accidentally" pushed him into the lake Neville had a hard time keeping a straight face and Hermione had playfully scolded him. Brenda however was looking out into the forest. Suddenly she pulled out her wand and stopped a silver dart inches from her face. Neville went to touch the dart but she told him to stop.
"This dart is covered in a highly poisonous substance found in the Muggle world there is no magic cure... In fact if any potion, magic animal product, or spells are used it makes it worse." She then slowly pulled out a handkerchief and held it out to Neville who gently picked up the dart.
By then Hagrid had come over "What 'r you staying behind fur?" Harry subtly pulled out his wand and cast a quick diagnostic spell to find the old fool had cast a intelligence charm along with loyalty bind. He was now pissed, but he pulled in the anger 'Remember Hermione and Neville. I don't want to scare them - and I especially don't want to scare Brenda.' When he got back under control he saw that Hermione had pulled him into a boat and to his surprise Neville had Brenda around the waist and was slowly helping her into the boat one step at a time while whispering words of encouragement into her ear. As Brenda had one leg on the shore and the other in the boat Ronald, who was soaking wet, pushed her out of the way to try and get on the boat. If Neville had not been holding on to her so tightly she would have fallen into the lake. Harry got up to go and show him what happened when he touched his sister but Neville beat him to it. He had picked Brenda up and put her in one of the boats seats turned around pulled it by its robes and threw him (with the help of accidental magic) into the center of the lake where the squid had decided to have some fun with it oh sorry Ronald. Hermione was turning red from a mixture of trying not to laugh and anger at Ronald, but Brenda was sitting in shock when Harry saw that her eyes seemed to flash to a blue and then back to brown.
He didn't have much time to think about it because they rounded the bend, and there he he was at Hogwarts. He almost cried because Hogwarts was intact. The last time he had seen Hogwarts, it was that slow walk to his death and but as he looked back at her she was burning and crumbed nothing like the sight before him. All five, there was another tower which wasn't that strange, Hogwarts was alive but it hadn't been there in his first year last time. Then he saw Professor McGonagall and he jumped out of the boat and pulled Hermione out with him and ran up to her and yelled "Aunt Kitty!" and gave her a hug everyone was standing in shock except for Neville who had just picked up Brenda and ran up to Aunt Kitty and (after setting down Brenda and wrapping an arm around her waist) they to gave a cry of "Aunt Kitty ( Brenda yelled Aunty Kitty)" and joined the hug. When Harry looked up at her and saw tears running down her face. When they had let go and Brenda was safely back in the wheelchair Aunt Kitty had composed herself and led them into the hall but not before asking them to meet her in her office after the feast.
A/N:
Ok so I have had some questions that people have questions that I am sorry that I haven't answered I was trying to get in as many chapters in before school started also this story is a mystery like the Harry Potter books so give me sometime to string them together
StormyFireDragon: What I meant was that Harry is the Heir to Slytherian and Brenda the Heir to Ravenclaw. Harry has the right to Slytherian because he is related on his mothers side and he beat the stronger bloodline in a duel (also the Goblins like Harry more that Voldemort). Ravenclaw's bloodline passes on threw the female line because she was married to Sir Griffindor which Brenda was secretly blood adopted into (it will come up next chapter or two).
Sakura Lisel: So when Harry traveled back in time he got a bunch of memories from Brenda. Brenda is also died so she can appear at any age so she chose to appear the same age as Harry. Dumbledore poisoned her so that as her magical core grew the poison slowly spread threw out her body.