Harry Potter looked at the letter on his kitchen table for a long time. The address was written in Sirius's handwriting, he would never forget anything about his Godfather, but the letter inside was not. He had only read the first line 'Dear Harry' but he put it down. The war had ended, along with most everything before it, and he had a feeling that this would just drag everything back up. Nonetheless, it was addressed from Sirius, and if Sirius had wanted him to read it then he would.

Dear Harry,

I don't know when this letter will reach you, if it ever does. Narcissa promised me she'd deliver one message to someone of my choosing. I should be giving this to Sirius, or Remus, or your parents but this war is coming to an end Harry, and I don't know if they're going to survive it. But you are, that I know for sure. I've seen it, and I know the prophesy. It's about you, so you will be the boy who lives. You will never know me Harry, you might not even know my name as you read this, but you should know that your parents, Sirius, Remus, and I all love you so very much. As I face my own death, I see all their deaths now, and I can't stop them. My friends, the love of my live, I see them in their final moments and I can't do anything about it, but I can make sure you know of their love for you. Of our love for you. This letter makes no sense to you right now, so enclosed I've given you a memory. A lot of memories, actually. My entire time at Hogwarts. We are going to miss so much, and I am so sorry, and I know that I can never make up for that, but hopefully knowing more about your dad and mum might help.

Your Godmother,

Cassiopeia Malfoy

Harry stared at the letter. There were multiple tear stains on the letter, some bigger than others indicating more than one tear dropped there, and it was written in barely legible cursive, but the name was readable. Cassiopeia Malfoy...he was expected to believe that his father was friends with a Malfoy. Still, the letter seemed extremely sincere and he was pretty sure nothing harmful could be transmitted via a pensieve memory. Still, he'd like to make sure that Cassiopeia was really who she said she. Luckily for him, they were going over to the Burrow tonight, for dinner with the Weasley's. Molly or Arthur might know who she is, and if not he could owl McGonnagal, who was teaching at the time that his father went to school. She would know at least, if Molly and Arthur did not, who Cassiopeia was.

Harry and Ginny with all three of their children, managed to Floo over to the Burrow after some confusion and an incident with a cat trying to sneak out with them. They seemed to be the last ones to arrive as the Burrow was packed. Harry made his way over to Arthur once he had said hello to both Ron and Hermione.

"Mr. Weasley, I recently got a letter from someone who claimed to know my dad, back in the first Wizarding War. I mean, I think she died, in the War, the letter looked like a final farewell, but I don't know if she really is who she says she is. Especially since...well, she signed with the name Cassiopeia Malfoy." Harry said and Arthur stared at him.

"You received a letter from Cassiopeia Malfoy? Do you have it with you?" Arthur asked him. Harry pulled out the letter, handing it over to Arthur. Arthur read it quick, before handing it back, his face extremely somber.

"Cassiopeia Malfoy was, what most considered, the fifth Marauder. She was Lucius's sister, yes, but apart from looks they were nothing alike. In fact, she was more like Sirius's twin than anything. Those two were made for each other I tell you, although Remus loved her just as much. She went missing, about a year before the war ended, and she was presumed dead. It nearly killed Sirius and Remus, and it would end up leading to the demise of their friendship. Sirius thought Remus had set her up, and then later Remus and thought Sirius did it, like he thought Sirius betrayed your mother and father. Cassiopeia had the gift of premonition, though, which is why it was odd that she just disappeared without telling anyone. Especially Sirius, as the two were engaged at the time." Arthur said and Harry stared at the paper.

"So why haven't I heard of her?" Harry asked him, folding it back up carefully and putting it in his pocket again.

"No one talks about her, I guess. For awhile it was out of respect for her passing and then just out of respect for Remus. After Sirius came back, when the Order was revived, we didn't talk about her because of Sirius. If she was enough to cast off his best friend, imagine what he would do to us? There was just never a good time, until it was too late." Arthur sighed and Harry nodded. He resolved that tomorrow, he would look at her memories in the Pensieve at work.

Harry arrived early the next morning, but he deliberated for awhile before he actually put the memory in and immersed himself in Cassiopeia Malfoy's life.

So...hello all! This is my first book or one shot or anything on this site, so hurrah. I have written fanfictions on Wattpad before, but I haven't actually finished anything. This one is a bit different, though. I've written the first chapter of the first book(obviously, you just read it) and I've written the last chapter of the last book. I intend for there to be 7 books, like Harry Potter, following Cassiopeia's years in school and then the last book skipping until the year Harry was born, the year of her death. There are some warnings that come with this book of character death, self harm, and other things that might be triggering. I don't know exactly yet but as I write the chapters I will put possible triggers at the top of the chapter, but obviously everyone has their own unique triggers so I advise you to read at your own risk.