Disclaimer: these aren't really necessary, I looked it up
Peter knew that he had to get his daughter somewhere safe so had made arrangements to have her hidden in his home of Remordere.
"This is a bad idea." Said Sirius pacing the floor. Peter shook his head.
"I have no choice, I have to save the child I have."
"Lily could just hide her with Harry!"
"Then James would know!" said Peter startling Portia
"And that's his right! Peter, he's your best friend and mine! We can't keep hiding this from him."
"I know but I just-!"
"I'll take care of her."
"No! I want her to be safe and away from all of this!"
Portia was intrigued by this but said nothing. She watched all of this occurring but she had one thought in her mind, her fear of separation from her father that she loved very much. The more rational part of her knew that it had to be done but if she couldn't be irrational as a baby then when could she be irrational.
"Alright, if anything happens to you I'll give her to your sister."
"Thank you Sirius." Said Peter leading him out. He then proceeded to sing Portia her last lullaby. The next day he killed James and he was killed. The Ministry of Magic delivered Portia to her aunt where she would spend the rest of her life missing Peter every single day of it.