I don't own Harry Potter or Powerpuff Girls Z.

When I refer to "the three girls" I'm talking about Kaoru, Miyako, and Momoko, usually.

I would like to thank m3At.

Broomsticks and Trolls

On a Thursday about a month into the term the Gryffindor first years were heading down to their first flying lesson. Unfortunately they had these lessons with the Slytherins.

When they got to the area where they were to learn to fly, they found the Slytherins and their teacher already there. Their teacher was Madam Hooch, who had short gray hair and yellow hawk like eyes.

She told them all to stand next to one of the broomsticks on the ground, put their right hand over it, and say up.

Only about eight people's brooms flew into their hands. These included Harry and the three girls.

When Madam Hooch was satisfied with what she had seen, she then showed them how to mount their brooms. After that she told them they were to fly a few feet into the air and then come back down when she blew her whistle.

Just before Madam Hooch blew her whistle Neville pushed off the ground hard in his nervousness. Madam Hooch yelled at him to come back down. When Neville looked down from about twenty feet up, he paled and lost his grip on the broom.

As Kaoru saw Neville fall, she pushed off the ground trying to catch him. She managed to grab Neville, but unfortunately his weight pulled her off of the broom. As the two fell Kaoru wrapped her arms around Neville and positioned herself under him before they hit the ground.

Madam Hooch and the Gryffindors ran over to check on them, while the Slytherins laughed at the two. They both groaned as they started to sit up. Madam Hooch's face went white as she saw Neville's wrist at an odd angle and Kaoru holding her left arm while a trickle of blood came from her mouth.

"Looks like a broken wrist and ribs" Madam Hooch said as she turned to look at Miyako and Momoko. "You two help them up and follow me up to the hospital wing. The rest of you stay where you are and leave those brooms on the ground, or ELSE!"

Madam Hooch led them up the castle lawn and through the corridors to the hospital wing. "May I ask you what you were thinking Miss Matsubara?" she asked looking back at them.

Kaoru gave her a pained smile "I wasn't thinking." She glanced at Neville out of the corner of her eye.

As they walked into the infirmary, they saw about twelve beds with a small room next to the door. Madam Hooch knocked on the door calling for the nurse, when she came out Madam Hooch told her what happened.

The nurse, a Madam Pomfrey, told Miyako and Momoko to take and place them on two beds. She then asked each of them what hurt, Neville told her it was his wrist and Kaoru said that her left shoulder felt dislocated and she thought she had a couple of broken ribs.

Madam Pomfrey told her to lie down, while she went back to Neville and fixed his wrist with a wave of her wand. When she turned around she saw Momoko holding Kaoru's left arm, before she shoved the shoulder back into place. At this Madam Pomfrey yelled at them asking what they thought they were doing.

"Umm…Momoko was just helping me pop my shoulder back into place" Kaoru said giving her a grimace, before coughing up a bit of blood.

Madam Pomfrey walked over to her "Where did you learn something like that, it's so barbaric!" She then pointed her wand at Kaoru's chest and said a few words.

Kaoru instantly felt the pain go away as her ribs were fully healed. She looked at Madam Pomfrey "Where I learned that with my shoulder was from my home country. We don't have as advanced healing spells and potions as you have here. So we've learned to make due with what we can. Thank you for healing me" when she said the last part she started to get up from the bed.

"Oh, no you don't. You and Mr. Longbottom are to stay here for the next couple of hours, before you head back to your dorms." She told her while gently pushing her back onto her bed.

"Madam Pomfrey, would it be all right if we stay to keep them company?" Miyako asked her politely.

"Yes dear, but just try to keep the noise down," she told her as she went back to the room next to the door.

Neville looked over at Kaoru "Umm…can I ask you a question?"

She looked at him and shrugged "Sure, what's on you mind?"

"Well, I was wondering why you tried to save me from that fall and why your always helping me so much in our classes?" he asked while blushing a little.

"Well, when you fell I just wanted to make sure you didn't get hurt, kind of failed there. With everything else I think it's because I see a lot of potential in you, you just need a little help make it grow" she told him with a smile.

The other two girls were whispering to each other while they were talking. When Kaoru and Neville were done talking the two girls were giggling.

Kaoru looked at them "What are you two laughing about?"

"It's just a joke that Momoko told me," Miyako said looking away from her.

After a couple of hours Madam Pomfrey sent them up to their dorms. When they got there the girls told Neville goodnight as they went up to their beds.

The next morning Takaaki told them about what happened after they had left for the infirmary. About Draco picking up Neville's Remembrall, Harry demanding he give it to him, then Draco and Harry flying into the air, Draco throwing the Remembrall, Harry catching it about a foot from the ground, and finally Professor McGonagall taking Harry away into the castle.

All this stunned them, and then they noticed six owls carrying a long, thin package that they dropped in front of Harry before taking off.

Harry ripped opened a letter that came with the package. They heard Ron say something about never having touched one, before the two got up and tried to leave the hall. Malfoy and his cronies blocked their way, causing an argument to start between them. Professor Flitwick walked over to them and started to talk with them. After a few minutes Ron and Harry moved past Malfoy, who had a look of rage and confusion on his face.

They found out later that the package was a broom and Harry had been allowed to join the Gryffindor Quidditch team.

Over the course of the next month they saw very little of Harry in the afternoon, due to him having to train with the Quidditch team three days a week.

In Charms class on Halloween, Professor Flitwick told them they would start making things fly. Everyone was excited about this, because they wanted to try it after seeing him make a desk fly around the room. Professor Flitwick put them into pairs: Kaoru was with Neville, Momoko was with Miyako, Harry partnered with Takaaki, and Ron was put with Hermione. Both Ron and Hermione were upset with their paring, but continued to do their class assignment.

Kaoru helped Neville practice the wand movements, before she even let him say the spell. They were sitting right next to Ron and Hermione who had started to argue again. Hermione then made her feather float four feet in the air, which made Professor Flitwick very proud as he pointed it out to the whole class.

When class ended the girls walked out behind Hermione, who was behind Harry, Ron, and Takaaki.

"It's no wonder no one can stand her. She's a nightmare, honestly" Ron said to the other two boys rather loudly.

The three girls noticed Hermione start to shudder, and then she ran past the boys. Miyako and Momoko ran after her, while Kaoru walked up to Ron and hit him on the head.

"What was that for?" he asked her while rubbing his head.

"You're and insensitive jerk Ron. You should learn to keep your mouth shut when you want to insult someone" she then walked off to their next class.

When the four of them went down to dinner that day, Kaoru glared at Ron "You know if those three aren't back in the common room by the time its lights out, I'm going to drag you through the whole castle till we find them and send an owl to Mrs. Weasley."

Ron gulped at this, as they sat down for the Halloween feast. When they looked around at the Great Hall they saw thousands of bats flying near the ceiling.

A couple of minutes after the food appeared on the plates, Professor Quirrell came running in. He ran up to the staff table panting "There's a troll in the dungeons, thought you should know" he then passed out.

The entire Great Hall erupted in terror, before Professor Dumbledore was able to calm everyone down. Professor Dumbledore then told the Prefects to take all of the houses back to their dormitories.

Kaoru looked at the three boys "We have to find the others."

Takaaki nodded "You're right, they don't know about the troll. Ron if anything happens to them it's all your fault."

Harry and Ron agreed with them as they managed to sneak away from the rest of the students without being noticed. As they were running down the corridor, Kaoru's large green buckle (compact) of her belt started to flash.

Kaoru stopped, pulled her buckle off, and opened is to reveal a screen showing a girl's face. "Where are you?" Kaoru asked the screen as the three boys looked over her shoulders.

"We're in the girl's bathroom on the second floor. Blossom and I are protecting Hermione from some monster" the girl said as they heard something smash in the background.

"I'll be there as soon as I can Bubbles" Kaoru told her as she quickly swiped her hand across the compact and yelled "Powered Buttercup!"

There was a flash of light and then the three boys saw that Kaoru's school clothes were gone. In their place she was wearing a green tank top with a green sleeveless vest over it, a green skirt, fingerless gloves and green shoes. She then floated in the air for a second before she took off faster then they believed was possible, in a streak of green light.

Harry and Ron stared dumbfounded, before looking at Takaaki.

"I'll explain later, let's just try to catch up," he told them as he ran in the direction she had headed.

(A few minutes earlier)

"Come on Hermione, we all know Ron's and idiot," Miyako said through the stall door in the girl's bathroom.

"Please Hermione, come out and we'll be your friends. We'll even help you get back at him if you want" Momoko told her, trying to cheer her up.

After a couple of minutes they heard the sobbing in the stall stop, followed by the door opening to reveal Hermione with a tear stained face.

She looked at the two girls "Do you really want to be my friends?"

The two girls looked at each other, and then embraced Hermione in a group hug.

The three girls then started to gag as an extremely horrible stench started to fill the room. They slowly turned to look at the bathroom door as a huge monster walked in.

The monster was about twelve feet tall; it had a dull, granite gray skin, with a small coconut shaped head on its boulder like body. It had short, tree trunk thick legs, with horny flat feet. One of its arms was dragging a huge wooden club on the ground.

"Hermione get behind us," Momoko told her, as she and Miyako grabbed their compacts. Both girls opened them at then same time swiping their hands over them and yelling "Hyper Blossom (Momoko)! Rolling Bubbles (Miyako)!"

After a flash of light both girls were wearing a tank top, with a sleeveless vest, fingerless gloves, and a different pair of shoes. Momoko's outfit was red and black, while Miyako's was blue and black.

Immediately after that Bubble's compact started to flash. She opened it and started talking to someone. While this was happening Blossom had flown over the monster's head and threw out an oversized yo-yo that had appeared from nowhere. When she did this she yelled out "Blood Pudding Smash!" The yo-yo hit the monster in the back of the knee making it fall against a sink, destroying it.

After Bubbles put her compact up she brought out her bubble staff, which she started to swing about yelling "Bubble Champagne!" Bubbles flew from the open circle on top of the staff at the creature, popping on contact, but doing no real damage.

As Hermione was watching, a girl flew into the bathroom wearing a green version of what Momoko and Miyako had put on and holding a hammer. The monster started to get up, when the girl in green swung her hammer yelling "Swing Sonic!" A green light shot out from the head of the hammer hitting the creature in the head. It stood still for a second, before it fell forward with a resounding crash that knocked Hermione off her feet.

The three girls flew over to Hermione to make sure she was all right. Hermione started to stutter and point at them "Wha…how…who…?"

They turned around when they heard footsteps from outside the bathroom. Three boys burst into the room, followed quickly by four teachers. The boys were Harry, Ron, and Takaaki. The teachers were Professor Snape, Professor McGonagall, Professor Quirrell, and Professor Dumbledore. Professor Quirrell fainted at the sight of the creature, while the other three looked from it to the students. Professor McGonagall was the first to speak "Who defeated the troll? And who are you three?" she directed the second question at the three transformed girls.

Before the girls could answer Professor Dumbledore stepped forward "Minerva, let's take this discussion to my office. Severus, please wake Professor Quirrell so you two can remove the troll from the castle. Now please everyone follow me." With that he left the room as everyone followed, except for Professor Snape and Professor Quirrell.

Professor Dumbledore led them to a gargoyle on a pedestal, before saying "Snicker doodle." The gargoyle jumped down and moved off to the side revealing a spiral staircase. They all walked up the stairs to a door, which the headmaster opened. When they got into the room they saw it was filled with paintings along the walls, a table off to one side was filled with silver instruments releasing smoke, and a birds perch next to a large desk. Professor Dumbledore went around behind the desk and sat down, the rest of the group sat down in chairs that he had conjured up.

Professor Dumbledore looked at the three girls in strange clothing "Could you three please explain who you are and how you were able to beat a mountain troll?"

The three girls looked at each other, then stood up and opened their compacts to push a button on the inside. After a flash of light the girls had returned to their school uniforms. Hermione, Harry, and Ron looked at them in awe, Professor McGonagall was completely stunned at what she had seen, and Professor Dumbledore and Takaaki were both just smiling at them.

When the three girls sat back down they started to explain everything to them. After about three hours of uninterrupted talking they were finished. Professor McGonagall, Hermione, and the two boys were shocked by the amazing things the four had told them, while Professor Dumbledore chuckled, before his face became very stern and he told them that everyone in the room would keep the girls secret and that he would tell the other two Professor's something to keep them silent. He then had Professor McGonagall take the seven of them up to the Gryffindor dormitory to turn in for the night.

A/N: Right off the bat, the girls had their belts on them because they only take them off for bed or taking a shower.

I hope you all enjoyed the chapter. I'm wondering if I should ask about getting a beta reader though?

I wonder if any of my friends will wish me a happy birthday today (October 17th).

Finally please leave me some reviews. I've been posting for a month and no ones left me any review. Without reviews I don't know if you all like the story or not.