Chapter 1:

Waking up was strange to Katherine/Kara. She was a mixture of both of the memories of Katherine Pierce 56 year old sorcerer of Kamar-Taj and Kara Zor-El 13 year old girl from the planet Krypton. This was truly strange to her as not only did Katherine/Kara have the memories of a much older human version of herself but she also had the knowledge of a tv show called Supergirl.

Katherine/Kara knew from the sorcerer's memories of the tv show that she was still in her pod as she had been for the past year in the phantom zone and she quickly changed the settings to delay putting her to sleep so she could have the time to organise her memories.

Closing her eyes and leaning back further in the surprisingly comfortable chair she breathed slowly in and out falling into a deep meditative trance. As she fell into the trance she slowly manipulated the magic inherent in all living beings to send her into a deeper trance when she appeared in her mind.

Her mind was quite frankly a total and utter mess and a mashup between places that comforted Kara like Krypton under the light of Rao, the red star in the centre of the horizon showcasing an absolutely beautiful sunset, the sight of the planet bringing her to tears especially as to her it had only been a matter of hours since it had been destroyed. To her immediate right was the New York Sanctum 177A Bleecker Street looking out of place on the planet with the front doors wide open as if beckoning Kara to enter.

Deciding to do just that as she looked around at the piles of books all around her some of them taller than she was but all spread around with no particular order she reached the doors and entered.

The inside of the Sanctum from what she could see of the entrance hall looked exactly the same as what it normally would with all of the artifacts around where they should be and the long stairs leading to the top were still there but at the top was a woman, a woman she recognised. It was Katherine, but how?

"How are here?" Kara asked timidly. "Especially like this, I thought we were supposed to be having our souls merged."

"They are right now but I have a lot of memories so it will take a little while. Look." Katherine spoke calmly while gesturing to her body that was slightly see-through.

"But why aren't I see-through like you? And why are you slowly fading out of existence?" Kara asked slightly afraid of the answer as this would be her only company for however long she would be stuck here in the phantom zone.

"I'm not fading out of existence. I am merging with you to become a version of you as you are the host body so we will become Kara Zor-El. It's not me fading, it's you becoming something more. No more Katherine Pierce but it will be us as you trying to do our best to help Earth, when we are ready." Katherine explained with a sad smile. "It will be an end of an era for me and you, it will be the beginning of us, as one."

"So what will actually happen to us as I have some of your memories that I can access but the rest are in a mess outside amongst mine!" Kara asked with a frown slightly confused by the words but understanding what Katherine meant.

"Well with my understanding of this if it happened as it should have the memories would have just merged and probably become clearer as they were more recent but because you are my counterpart we are going to have to sort all of our memories as I'm sure you are noticing just like I am that you can't recall certain things." Now that she mentioned it Kara knew exactly what Katherine meant there were a few memories that she couldn't find when she focused on them.

"First we should sort the memories into piles of subjects and I will help you for as long as I can but it will probably take a lot longer than I will be here for to help you sort them all." Katherine wisely suggested.

So the two got to work sorting their memories with them all being stored in hidden rooms depending on what kind of information is in them. Things that couldn't be used to hurt Kara were placed on the shelves of the library while others that had sensitive information like the arrowverse tv shows were all hidden in secret rooms that hadn't existed in the sanctum and the two made sure they were completely hidden and protected so mind readers would never find them.

Just as the two were about to create shields around Kara's mindscape Katherine faded completely out of existence and a small earthquake rumbled through the mindscape as she suddenly felt like she was just, more. With the merging finally complete Kara felt different, not in a bad way, she just felt different and her personality had changed slightly as she became more confident but other than a few minor tweaks to her personality and way of thinking she hadn't changed much at all.

The shields of Kara's mindscape would be powerful as they would be held together by both magic and willpower, with the combined willpower of both of her minds it should be extremely difficult for anyone to be able to get in but it could still happen so she changed her mindscape slightly so that there would be trillians of copies of what it looked like now with shields of their own just as powerful so that all of them were indistinguishable from each other just without her memories.

After that she ensured that anyone trying to enter her mind would appear in the void between all of the shielded copies of her mindscape so that they wouldn't land on the correct copy.

With her memories properly ordered and hidden from any nosy telepaths that may try to gain entry into her mind Kara slowly brought herself out of her meditation.

As she awoke from the deep meditation in her pod Kara found herself looking out into the phantom zone and with some difficult maneuvering she managed to reach behind her and grab a long thin box. Upon opening up the box she saw a crystal that would allow her to create her own version of a fortress of solitude alongside some other items that she had never seen before. She closed the box and drawing on her magic opened up her soul bound pocket dimension before carefully placing it inside and closing it back up before looking around the small pod for the box with her mother's message.

After finding the box she again placed it inside the pocket dimension before messing around with the settings of the pod to put her back to sleep so she doesn't have to endure the next 23 years awake.

After setting the pod to wake her up upon it being in Earth's atmosphere she looked around the dark empty void that is the phantom zone before pressing the Kryptonian equivalent of an enter on the holographic keyboard and leaned back to find a comfy position as she closed her eyes and slowly drifted off.