Disclaimer: I do not own Sailor Moon or Harry Potter. I only own the plot line for this story.

Timeline: It starts at my own version of the battle at the Department of Mysteries. It is many years after Serena turns into Cosmos.

Summary: AU During the fight at the Department of Mysteries the Order and the Trio meet Luna's Guardian Angel. She disappears soon after bringing up a lot of questions for the next year along with two new teachers.

Lady of the Stars

Chapter 5:

In a mountain surrounded by a forest proudly stood a large renaissance style manor; separating the manor from the forest edge were expanse well-groomed gardens. On the ground floor of the manor one could see, if it was not so heavily warded with all types of magic, a large window was uncovered showing clearly the sparkle of what seemed like tiny silver stars. As they dissolved in their place stood a rare beauty of a woman staring out into the forest with a thoughtful expression on her face.

Serena had just returned from dropping off the order and friends at Hogwarts and came to this manor which was one of her numerous properties all over the galaxy. She had inherited some of them when she became Cosmos others she had set up herself. She used them to stay in whether she was on a mission or just trying to get away from her duty. This manor was one of her favourite places to stay as it was close to Luna and on the planet that reminded her of her old world.

Sere slowly turned away from the large window to glance over the room she had appeared in. It was a large room, as were all the rooms in the house, and seemed to be a study or office. Its walls were a warm golden beige colour with dark wood panelling around the edges, the floor was the same dark wood and scattered around on it were white shag rugs.

Behind her was a wall full of windows overlooking the gardens and forest with sliding glass doors leading out onto a balcony overlooking all the land. On the wall in front of her to the left lay a large door that led to the hallway, the rest of the wall was covered in bookshelves that were full to the brim with volumes of all kinds.

To her left was a large marble renaissance fireplace and above it was a painting of the moon kingdom from long ago. In front of the fireplace was a dark wooden coffee table and a large comfy-looking sofa of a soft cream colour with chocolate brown pillows as well as matching arm chairs either side of it facing each other. Either side of the fireplace there was a game of wizard chess with two more armchairs and a large wooden cabinet with glass panels which seemed to be filled with pre-made potions.

To Sere's right there was a large wooden desk with a brown high back office chair behind it. The desktop had stationery neatly spread out on it with the files and papers locked in the desk. In front of it laid another two armchairs facing the desk. Behind the desk was a door that was smaller than the main door yet no less expensive looking made of dark wood with a golden handle. The door led to a humongous library that held more books and records than ever deemed necessary and in every language that can be thought of. This room was one that Serenity set up so it could be accessed from any of her designated doors in her many properties. It held all the information on ever needed to know about the cosmos as well as some things that are irrelevant. It was her private library which she used often for research when conducting her duty or for 'light reading'. 'Ami would be so proud of the amount of reading I do now. Their spirits have seemed to have left a lasting impression on me.' She sighed sadly remembering her soul sisters.

Sere slowly strolled towards the desk and shook the small bell on the table which called one of her servants to her. The servants of the manor consisted of House-Elves who were offered money for their services but refused as they thought it an honour to work for the Messiah herself. As well as a family of humans who were brought up in the manor for many generations and always served Serenity even though she offered to let them pursue other careers few actually did. The family were blessed with longer than normal lives, it was more appropriate for them to live longer as there are times when Serenity does not come back for many years. It would prove awkward to go away with one set of servants and then come back and find that they have all died and new ones in their place. Those that went off to do other jobs usually did so in a way that would benefit Sere when she needed help. Meaning many worked in the ministries of different countries, hospitals and places that develop new spells and potions.

As she waited patiently she looked out the window wondering how Luna was doing with all the questions the wizards were asking her. A few minutes later the door opened and in walked in a short middle-aged man, who in truth was much older than he looked. As he came into the room and set his eyes upon Serenity his whole face lit up with happiness and he quickly bowed. Sere was used to people bowing to her from having many centuries filled with the action when people knew who she was, no matter how many times she told them it was not necessary. She finally accepted it as part of her status and a way that people showed their respect for her.

"Milady! It has been a few years since you have been here last. We are so glad to have you come back to us!" the man said with honest cheerfulness and a smile on his face.

"It is good to be back Giles. I have missed the company of you all." Sere replied with contentment at the man who she considered a dear friend from all the years she had spent with him when she was here. 'It is good to be back in a familiar place. Travelling takes so much out of a person.'

Giles was quite short for man with a height of around 5'7", he possessed warm brown eyes and short dark brown hair. He was a kind and gentle man with a touch of sternness in him. Very proud in the fact that he got to tend to the needs of the Messiah, he found her to be a very caring person even though at first glance she could seem to be cold and distant. Sere was always kind to the ones that helped her and treated everyone equally with few exceptions a trait she had not lost when she became Cosmos.

Sere approached her friend and gave him a hug which he returned. Stepping back they did a quick look over each other to make sure there were no injuries present and smiled at the other, it was a tradition they did every time she came back. 'It's nice to see some things stay the same.' Time did not affect her but it did change many things around her.

"So how long will you be staying this time? I hope it will be longer than usual." Giles asked.

"Your wish is granted friend. I plan to stay here for a while as it seems that there are some problems going on in the wizarding world that I may be able to help with." She replied, thoughtfully. 'There must be something I can do if the sisters have not called me for having interfered'. They moved towards the seats in front of the fireplace, which lit as soon as they were close enough, and sat down.

Giles' face darkened in understanding. "I guess I am correct in saying this is about the return of Voldemort?"

"You are correct. I have just come back from the ministry where I had to rescue Luna from one of his minions."

A slight gasp came from the man's lips and his eyes lit up in horror and concern for the young girl. She was known in the manor to be the ward of the lady and she had even visited a few times. The members of the household enjoyed her presence and found it amusing when she talked of having proof that certain mythical creatures were real.

"She was not harmed I hope! She is such a sweet girl."

"No she was not harmed I got there in time to save her from the killing curse." Her eyes darkened slightly with anger, shown in her voice as she spoke, "However, I was prevented from extracting my revenge as it seemed he was a key player in the deaths of the Potters…"

The two continued talking a while on all that had happened since Serenity had last been gone. When they finished it was dark outside and the lights in the room turned themselves on bathing the room in a warm glow. Giles left then and set off to tell the others of the situation and make sure all was in order for his lady.

Sere slowly stood up from the couch and went out onto the balcony to get a breath of the fresh air. She looked up towards the sky as she lent on the ledge and reminisced on all that had happened that day. 'I suppose I will have to do some research to look into the case of Voldemort to try and see how far I can go before the fates pull me back. But first things first, I will not rest until I get rid of that Veil!'

She slapped her hands on the ledge and straightened up, disappearing in flurry of silver stars only to reappear in the ministry room. Glancing around and saw that all the injured and deceased had been removed and that it was completely rid of life. Most of the room lay in ruins with bits of debris everywhere.

Serenity then drew her attention to the Veil walking up to it. She held her hand out to the side and called upon Saturn's Glaive. 'How dare they keep something this volatile and dangerous. Did they really think they could control the power it holds, they can't even understand what is written on it! There was a reason they were all destroyed.' Sere silently exclaimed in her head not believing the stupidity of some people. With a puff of purple smoke the glaive appeared in her hands and with it she could hear all the dead voices of the Veil clearer as well as the aura around it. She stopped in front of it, brought the glaive to stand in front of her and closed her eyes focusing Saturn's power. Serenity mumbled a spell in the language of the people of Saturn in order to draw the power from the Veil back into the glaive where it belonged. Then with one fatal sweep of the glaive she cut through the arch and it crumbled to the ground leaving only a cloud of dust and rubble. Slowly she turned around the glaive disappearing from her grasp the same way it entered. 'There it is done. I sincerely hope that is the last one. I do not wish my soul sister's powers to be used wrongly by those who have no understanding.' She thought in sadness.

As she came to a stop and prepared to teleport back to the manor she felt the residual energy of a familiar being. Her eyes snapped open and she immediately scanned the area in worry and anxiety trying to pinpoint the exact location of the energy. Her gaze stopped to her right where she quickly approached in order to get a better reading of the energy trying to discover if she was correct in her first assumption or if it was a mistake. 'Please do not let it be true! I do not want my fight to have to be brought this close to Luna,' Sere prayed mentally and yet there was a slight bit of hope that wanted it to be what she thought it was. 'If it is I will be free sooner and I will have finally completed my task,' she thought with her mind confused as to what she truly wanted.

Her eyes quickly lit up with recognition at the fact that her first assumption had been right and that her final part of her mission was to be dealt with here. It seemed that the being that had been split into many pieces had placed its last piece here. 'So this is why I was allowed to interfere… so I was able to discover this.' Serenity's eyes soon filled with determination as she whispered, in hatred, the name of her greatest foe and that of who she had been chasing and fighting for centuries: "Chaos!"