Disclaimer: I do not own either Harry Potter or Sailor Moon. They belong to their respective owners.

The three were astounded at the amazing sight that greeted them. Usagi was battling against Costria. Kicks, punches and blows were being exchanged. Costria jumped back and armed herself with a knife. Usagi just bowed mockingly and moved into a battle stance. Costria rushed at her, but Usagi just feinted to the side. Bringing her leg up into a roundhouse kick she quickly disarmed Costria. In a matter of seconds she had Costria pinned to the ground. "Alright I yield to you Mother." Costria said laughingly. : Mother? : The three hidden teens thought. Usagi studied Costria's face intently. "You never call me Mother except on state occasion's, so what's wrong?" Costria stood up and looked at her mistress. "When we were still in the cori'anthin you told us that the Goddess said you would find family here. So have you?" Costria asked. Mayvar and the other three children looked at her. Usagi sighed and her face became devoid of all emotion. "I spoke to Professor Dumbledore earlier." She began. "And?" Mayvar prompted. She glared at him before continuing. "He told me nothing about my parents, but he told me my twin brother is Harry Potter." Mayvar and Costria's jaws dropped. "You mean the very person our Imperial master ordered us to protect?" Mayvar asked stunned. "The very one. Which is why his dying, cryptic words make sense now." Usagi said sighing. "Well, that's interesting. When are you going to tell him?" Costria asked. "I have no idea." "Well, let's get out of here because we still have homework to do." Costria said. They gathered up their stuff and headed toward the stairs.

Shocked by the news they had heard, the three teens were jolted out of their daze by Costria's last words. Quickly they raced up the stairs and out the portrait. They raced all the way up to the Gryffindor Tower and took off the Invisibility Cloak before heading into the Common Room. Harry dropped into a seat and the other two followed suit. "I wonder how come Dumbledore never told you?" Hermione said out loud. "I have no idea why. So I have a twin sister." Harry said, dazedly. "Now I know why I thought of you instantly when I saw her." Ron said thoughtfully. "Maybe you should talk to Dumbledore about it." Hermione suggested. "Good idea, 'Mione." Ron said and all three jumped up. They headed out the portrait and went to Dumbledore's office.

They knocked on his door after going up the secret stairs. "Come in." A voice called out. The three entered and faced him. He watched them and then motioned for them to sit. "I wondered when you would come looking for answers." Dumbledore said aloud. "How come you never told me I had a sister?" Harry said his voice full of anguish. The headmaster sighed and leaned back in his chair. "First off, she had been born into the wrong dimension. Once she was born I was visited by a queen. She told me her daughter, Usagi, was supposed to be reborn into a different dimension where she would be that world's savior. I had to take her from your parents to return her to her own world. Then as I was on my way to return her something intervened and took her from me. Obviously she grew up in a totally different world. She has since been sent here at the request of her master, a friend of mine, who was the Emperor of the mighty Shiana Empire." Dumbledore explained. "Do you know what she grew up as?" Hermione asked timidly. "All I know is that she was raised as the daughter of a noblewoman and became a very important person in the hierarchy of the Shiana Empire." Dumbledore responded. The three were silent as they digested this information. "Can I tell her that I know?" Harry asked hopefully. The headmaster sighed and closed his eyes. "I see no reason why neither of you can't know." He replied. "Thank-you, Professor!" Harry exclaimed and the three of them ran out. Dumbledore looked out the window and wondered if he had done the right thing.

"Should we talk to her now?" Ron asked. "If she isn't doing anything and if we can get her by herself." Harry replied. The three were silent as they trudged up the flights of stairs. Entering the common room, the trio saw Usagi sitting on a chair watching the fire. Harry took a deep breath and walked up to her. The other two followed slowly. "Usagi, can we talk to you?" he asked. She looked up at him and the other two. "Why not." She responded. The three sat down and an awkward silence ensued. Finally, Harry blurted out, " I know you're my twin sister." Usagi's head shot up and her eyes bored into his. "How did you know?" "Dumbledore told me." Harry replied, not taking his off of hers. Slowly she relaxed and looked at him. "What happened to our parents then?" she asked. Harry clenched his fists. "They were killed by the Dark Lord Voldemort." He responded. "Does he command a force of people clothed in black robes who call themselves Death Eaters?" She asked. The three nodded empathetically. Her green eyes blazed with an inner fire. "Then he shall die. Goddess witness my oath." She snarled. The three glanced at each other. "So tell us about the place where you grew up." Hermione suggested. Usagi sighed and looked at them. "Well, from what Rhaiva told me I was found in a warm, valley in the Mountains of Ice. I was rescued by Resheva, Queen of the Dragons. She nursed me until I was able to leave her side. Then, on a suggestion from Rhaiva, she took me to Malaina Duchess of Regalia. There I stayed until I was four. Then Rhaiva took me to the palace to train as his successor. I lived there for the rest of the time visiting Regalia during the summers. About the time I was six my "mother's" sister died and my mother left me the title of Countess of Cortay. Malaina died when I was eleven. By that time I was already in the assassin ranks and later that year I was initiated into the dhai'hava. I studied to control the magic of the dhai'hava and I also studied to learn the arts of the ala dhai'hava. Which were the rulers of the dhai'hava. By the time I was thirteen I had taken over the position of the Ilyena. Rhaiva then started training me in the arts of the High Councilor. My the time I was fourteen I was fully recognized as the High Councilor to His Imperial Majesty, Emperor Roald. Then when I was sixteen the capital and the entire empire of the Shianans was attacked and while I was out working a treaty with another planet outside the Great Barrier." Usagi explained. By this time the trio's jaws had long hit the ground and their eyes were about ready to pop out of their sockets. "All this by the time you were sixteen?" Harry croaked. "Yes. The children of the nobility are trained to their positions young. It wasn't uncommon to see the Inner Circle split half and half between young and old. We children of the nobility are raised to take responsibility seriously." Usagi answered. "So you had a lot of power in the Empire?" Ron asked. "I was second only to the Emperor himself." Usagi replied. "I think that is enough for tonight. I will answer more of your questions tomorrow." Usagi said standing up. They all exchanged good nights and headed up to the dormitories.

Hermione quickly changed and fell asleep in a matter of moments. Usagi, however, stood looking out at the half moon. "Why do you not ask your teacher about me?" the same eerie voice whispered. Prepared for this Usagi steeled herself, but said nothing. "Could it be that you are afraid to find out your true past?" the voice of the moon whispered thoughtfully. Usagi winced as the voice had hit too close to home for her comfort. "I'm not afraid of anything." Usagi said. "Then we shall see." The voice said before quieting. Usagi stood looking out the window for a while longer before climbing into bed.

The next day was Halloween and the thing on everyone's words was the dance that night. Usagi was still thinking about what had transpired the evening before. She sat down at the table and helped herself to breakfast. She sat quietly eating while everyone chatted away about tonight. Feeling eyes upon her she looked up and met Snape's eyes. They stared at each other for what seemed like an eternity before someone said something to her. She looked away from him and for some odd reason, felt like strangling the person who interrupted. "I'm sorry what did you say?" Usagi questioned Lavender Brown. "Oh, I wondered what you were going to wear tonight for the dance?" she asked. "You'll have to wait till tonight to see." Usagi said a secretive smile on her face.

The rest of the day passed quickly as they had no classes. Three hours before the dance started all the girls headed up to their dormitories to get ready. The guys had always wondered why it took the girls so long to get ready.

Usagi, Hermione, Lavender and Parvati were all getting ready. "So who are you going out with, Hermione?" Pati asked, while brushing out her hair. "Oh, I'm going out with Ron." She replied, blushing furiously. "Way to go. I'm going with Dean." Parvati said. Lavender looked at Usagi and asked, "So who are you going with, Usagi?" "I'm going with Malfoy." She replied while wrapping her hair up in a gorgeous hairstyle. The three looked at her. "What?" she asked, her voice muffled by the pins in her mouth. "You do know that Malfoy is like the biggest jerk in the school." Hermione said slowly. "Yeah I know that, but I didn't really have anybody to go with and I didn't want to go alone." Usagi said examining her hair. "I know like fifty million guys who want to go with you!" Lavender practically shrieked. "Well where were they then?" Usagi asked reflectively. "." was the response.

Three hours had passed and practically the entire guy population was waiting in front of the Great Hall doors for the girls. Precisely ten minutes till the dance started all the girls showed up. They immediately found their dates and waited for the doors to open. Malfoy looked around anxiously for Usagi, but couldn't see her. Just before the doors were about to open he started to here whispers and saw fingers pointing. Usagi descended the stairs almost regally. His mouth practically dropped to the ground when he saw what she was wearing. The school robes were tailored exactly to her figure and were of a different cut than the others were. One side of the robe was crossed over the other and the robes seemed to swirl with black, gray and silver. The sleeves of the robe were longer than normal and flared out at the wrists. Her hair was swept up into a tight bun with two curly tendrils framing her face. The choker she wore was literally braided gold with silver strands intertwined. Her earrings were glittering diamonds in teardrop shape rimmed with emeralds. Silver eye shadow shaded her eyes and her lips were painted a luscious red. She smiled slightly at the stunned look on the student's faces. . Harry was amazed at his sister's beauty while Makoto watched her Princess descend the stairs. : Where did she ever get jewelry like that? : Makoto wondered. Usagi reached the bottom of the stairs and found Malfoy. She stood next to him as the doors opened.

A/n: Sorry it took so long to get out. Thanks for the reviews. Keep reviewing. Next chapter will be out soon. Hopefully. Dark Disaster*