I've written part two. Introspection on Severus/Pluto's part.
FLASHBACK
There was this ominous premonition – the first since our start together.
"First stage contact confirmed," Dr Sinistra said. "The eclipse is about to begin, everyone!"
I had the horrible feeling that the darkness was falling...
For the first time in my life as Severus Snape, I wanted to be wrong.
"Second stage confirmed!"
Severus looked up at Dr Sinistra, who was looking at the computer and taking down notes on a clip board.
The screen showed something I had never seen before. A face, but horribly, horribly distorted...it was laughing. I could hear it laughing. And for one moment, everything around me grew dark.
"-erus! Severus!"
Severus jumped back. Dr Sinistra's hand rested in the air where his shoulder had been, giving him a funny look. A few nearby scientists looked over in curiousity.
"Severus? You're drenched in sweat," Sinistra said. "You missed the eclipse. It was beautiful."
Beautiful? How could you say that, you fool? Didn't you feel it? Space-time has been distorted – I felt it distort. Didn't anyone else sense it?
I know it. Something foreign had just invaded us, from another dimension...
Could it be an enemy?
Severus ran outside, much to the surprise of his coworkers. The normally cool and collected man just looked like he'd seen his grandmother's ghost and decided to chase after it.
"Dr Sinistra?" an intern began. "Should we-"
"No," Sinistra said, dropping her hand to her side. "Let him be. He must have..." she trailed off, unsure of what to say. "Just...give him some room."
And then...when I needed to transfigure...I couldn't...
"Pluto Wand Power! Charm up!" Severus shouted, throwing his wand-shaped pen into the air.
The pen clattered to the ground.
"What...the hell?"
Severus stared at the pen on the ground. His transfiguration had never failed him before.
Why couldn't I transfigure?
"-erus-papa! Severus-papa!"
Severus shook himself out his revery. Remus and Sirius were watching him knowingly, but tiny little Harry was staring up at him with large, impatient eyes.
"Severus-papa," he keened, tugging on Severus's loose green shirt.
"...sorry, Harry." Severus patted the boy on the head, and Harry beamed up at him.
"That's okay! Watch what I can do, Severus-papa!"
"All right," Severus said quietly.
Has it been six months already?
"Are you watching? If you look away, you're gonna miss!"
"I said I was watching, didn't I?"
We all knew it would come. Our battle had finished, and we had to select a different path to take. That we couldn't transfigure was surely a sign that our mission was indeed complete.
However...
"Don't look away, okay? Wa-"
"I'm watching you, damn it!" Severus snapped. Harry just grinned, however, used to Severus's impatient outburst.
However...
"Okay. Watch me."
"Harry, I'm-"
"Whee!"
Harry promptly fell to the side and onto his hands. He waved, his feet in the air, much to the restrained horror of Remus and the prideful glee of Sirius.
You were with Remus and Sirius on the day of that eclipse. You couldn't have been anywhere else. You were less than a month old. I remember seeing you before leaving for London, Remus feeding you.
"It's a standhand!" Harry declared.
"Handstand," Sirius corrected.
"Yeah, that!" Harry wobbled some more before falling backwards onto his bum. "Ow."
Remus feeds you and takes care of your health. Sirius plays with you and he used to change your diapers. I make sure you're educated and disciplined. We all took on roles to bring you up.
"He's going to break his head open doing that," Remus sighed.
"No I won't," Harry protested.
Since the day of that eclipse, Harry, you've grown with such speed.
"It's too close to the ground to break, Remus," Sirius replied. However, he turned to Harry and said, "But from now on, only do that on the carpet, okay?"
"Uh-huh," Harry said distractedly. His large green eyes were staring up at Severus.
"I swear, the two of you are going to give me grey hairs," Remus muttered in the this be a sign? Could this be a sign of our awakening?
"Severus-papa?" Harry asked quietly. "What're you thinking about?"
Severus hesitated, not sure of how to answer the boy. But the doorbell rang, and Harry jumped up.
"That's them!" he shrieked, running from the room. "Iiiii'll get it!" he exclaimed.
"Good Lord, is it time already?" Remus asked, leaving the room hurriedly. "I completely forgot!"
Sirius chuckled. Severus simply stared at the hallway.
What are you trying to tell us?
"Severus," Sirius said quietly.
Severus looked over at him. Sirius's face was grim, a strange look on the normally hearty man's face.
"Come on. Harry likes it when we watch his lessons."
Sirius exited the kitchen. In the living room, Remus could be heard telling him to button his shirt. The students were tittering on about some sort or another.
What awaits us down the road?
"Severus-papa?" Harry called plaintively. "Come watch me play!"
The brats were still chattering inanely.
"Seeeveruuuuus-paaaapaaaaa!" Harry called.
Severus pushed himself off the wall.
"I'm coming, you insufferable little child!" he responded, putting as much vehemence into the word "child" as possible.
"Yaaaaaay!"
What does the future hold for us?
I know that Setsuna's flashback in the manga is small and doesn't mean much. But this sort of a crossovery-adaption, so...
A note on the name: Goodlooking Witchsoldier Robemoon, or Bijin Mashi Robemoon. Bijin is a word that, literally, means "pretty/goodlooking person." It usually means a woman, but it could mean a man. Of course, that would make the man someone effeminate, but...it's the best I could find. Mashi is not, to my knowelge, a real word. I made it combining the characters for "demon, magic" (ma) and "soldier" (shi). I made it up to make a connection to the magic part of Harry Potter. Robemoon is a parallel to Sailormoon: the "sailor" part is a reference to the sailor uniforms girls in Japan wear. In Harry Potter, magic students (at least in England) wear robes.
FLASHBACK
There was this ominous premonition – the first since our start together.
"First stage contact confirmed," Dr Sinistra said. "The eclipse is about to begin, everyone!"
I had the horrible feeling that the darkness was falling...
For the first time in my life as Severus Snape, I wanted to be wrong.
"Second stage confirmed!"
Severus looked up at Dr Sinistra, who was looking at the computer and taking down notes on a clip board.
The screen showed something I had never seen before. A face, but horribly, horribly distorted...it was laughing. I could hear it laughing. And for one moment, everything around me grew dark.
"-erus! Severus!"
Severus jumped back. Dr Sinistra's hand rested in the air where his shoulder had been, giving him a funny look. A few nearby scientists looked over in curiousity.
"Severus? You're drenched in sweat," Sinistra said. "You missed the eclipse. It was beautiful."
Beautiful? How could you say that, you fool? Didn't you feel it? Space-time has been distorted – I felt it distort. Didn't anyone else sense it?
I know it. Something foreign had just invaded us, from another dimension...
Could it be an enemy?
Severus ran outside, much to the surprise of his coworkers. The normally cool and collected man just looked like he'd seen his grandmother's ghost and decided to chase after it.
"Dr Sinistra?" an intern began. "Should we-"
"No," Sinistra said, dropping her hand to her side. "Let him be. He must have..." she trailed off, unsure of what to say. "Just...give him some room."
And then...when I needed to transfigure...I couldn't...
"Pluto Wand Power! Charm up!" Severus shouted, throwing his wand-shaped pen into the air.
The pen clattered to the ground.
"What...the hell?"
Severus stared at the pen on the ground. His transfiguration had never failed him before.
Why couldn't I transfigure?
"-erus-papa! Severus-papa!"
Severus shook himself out his revery. Remus and Sirius were watching him knowingly, but tiny little Harry was staring up at him with large, impatient eyes.
"Severus-papa," he keened, tugging on Severus's loose green shirt.
"...sorry, Harry." Severus patted the boy on the head, and Harry beamed up at him.
"That's okay! Watch what I can do, Severus-papa!"
"All right," Severus said quietly.
Has it been six months already?
"Are you watching? If you look away, you're gonna miss!"
"I said I was watching, didn't I?"
We all knew it would come. Our battle had finished, and we had to select a different path to take. That we couldn't transfigure was surely a sign that our mission was indeed complete.
However...
"Don't look away, okay? Wa-"
"I'm watching you, damn it!" Severus snapped. Harry just grinned, however, used to Severus's impatient outburst.
However...
"Okay. Watch me."
"Harry, I'm-"
"Whee!"
Harry promptly fell to the side and onto his hands. He waved, his feet in the air, much to the restrained horror of Remus and the prideful glee of Sirius.
You were with Remus and Sirius on the day of that eclipse. You couldn't have been anywhere else. You were less than a month old. I remember seeing you before leaving for London, Remus feeding you.
"It's a standhand!" Harry declared.
"Handstand," Sirius corrected.
"Yeah, that!" Harry wobbled some more before falling backwards onto his bum. "Ow."
Remus feeds you and takes care of your health. Sirius plays with you and he used to change your diapers. I make sure you're educated and disciplined. We all took on roles to bring you up.
"He's going to break his head open doing that," Remus sighed.
"No I won't," Harry protested.
Since the day of that eclipse, Harry, you've grown with such speed.
"It's too close to the ground to break, Remus," Sirius replied. However, he turned to Harry and said, "But from now on, only do that on the carpet, okay?"
"Uh-huh," Harry said distractedly. His large green eyes were staring up at Severus.
"I swear, the two of you are going to give me grey hairs," Remus muttered in the this be a sign? Could this be a sign of our awakening?
"Severus-papa?" Harry asked quietly. "What're you thinking about?"
Severus hesitated, not sure of how to answer the boy. But the doorbell rang, and Harry jumped up.
"That's them!" he shrieked, running from the room. "Iiiii'll get it!" he exclaimed.
"Good Lord, is it time already?" Remus asked, leaving the room hurriedly. "I completely forgot!"
Sirius chuckled. Severus simply stared at the hallway.
What are you trying to tell us?
"Severus," Sirius said quietly.
Severus looked over at him. Sirius's face was grim, a strange look on the normally hearty man's face.
"Come on. Harry likes it when we watch his lessons."
Sirius exited the kitchen. In the living room, Remus could be heard telling him to button his shirt. The students were tittering on about some sort or another.
What awaits us down the road?
"Severus-papa?" Harry called plaintively. "Come watch me play!"
The brats were still chattering inanely.
"Seeeveruuuuus-paaaapaaaaa!" Harry called.
Severus pushed himself off the wall.
"I'm coming, you insufferable little child!" he responded, putting as much vehemence into the word "child" as possible.
"Yaaaaaay!"
What does the future hold for us?
I know that Setsuna's flashback in the manga is small and doesn't mean much. But this sort of a crossovery-adaption, so...
A note on the name: Goodlooking Witchsoldier Robemoon, or Bijin Mashi Robemoon. Bijin is a word that, literally, means "pretty/goodlooking person." It usually means a woman, but it could mean a man. Of course, that would make the man someone effeminate, but...it's the best I could find. Mashi is not, to my knowelge, a real word. I made it combining the characters for "demon, magic" (ma) and "soldier" (shi). I made it up to make a connection to the magic part of Harry Potter. Robemoon is a parallel to Sailormoon: the "sailor" part is a reference to the sailor uniforms girls in Japan wear. In Harry Potter, magic students (at least in England) wear robes.