Eir made her way from the bifrost bridge which was as beautiful as ever, she was stopped by heimdall. He said "Princess, I'm sure you're aware that all father had put tesseract on mudguard for safe keeping. If They finds out that you took it without his consent that They might be displeased."
Eir who heard this, thought for a moment and said "Understood heimdall, I'll inform father myself, you don't have to trouble yourself with this."
She wore a neutral expression outside but inside she was thinking a trick that will block heimdall eyes from praying onto her future adventures as she made her way towards the palace.
She went to her mother workplace, and soon she found her mother casually reading some books. They met and gave each other a mother-doughter hug. Frigga was happy to see her doughter back in good health and Eir too enjoyed the reunion. Then she asked about the whereabouts of other family members.
She leaned that Odin was on Argard but couldn't be met today because of his busy shedule. As for her brothers they were both invited in Vanahiem for some grand compitition for warriors. As they were both busy with similar things like small scale wars and the like, it was quite common for them to be in different realms occasionally.
After some mother doughter catch up, Eir went to her lab which was in good condition given the time she had spent on Midgard.
As she now possess the Reality stone too, she could get her body modification and body strengthening to completely different level.
In her experiments previously she understood that even if a god and a human looked alike on the surface but the material from which their body was created was completely different in quality. She conclude that if she could enhance her cells and genes like a higher being then she could surpass her godly strength by many fold.
Previously she couldn't find the right materials to work with but now with Reality stone in her hands, she could just convert simple matters into whatever she desires. She could convert dirt into gold if she wanted or convert in into uru or vibranium or admantite with just a thought. She just needed to understand the property of the metals first though so she needed a little sample and understanding of the thing which she desired to create.
Now, on the matter of better upgrade for her body, Which being's cells could be more powerful then a god and even was lying around for Eir to get some samples from. Well that was a Celestial.
She didn't wanted to get to their size but that she could fix with her Life magic and Reality stone complementing each other.
And by chance there was a baby celestial being hatched in core of Midgard. So she make a quick round to Midgard and collected a handful of cells from that sleeping bady. It was so small compair to the size of that celestial that he wouldn't have felt it even if he was awake. She faced some problem collecting it as it was like iron even from her godly standards. But she managed.
Now that she got the sample, she had to adjust and modify it for her own body. After that somewhat hard process, she replaced her organs bit by bit with the new and better ones.
She was feeling like she was an expensive machine which was getting modified with new shiny parts. It took some time for this process to be done as it was a delicate operation. But the end result was really worth all the trouble.
She now possecc the ability to gather and utilities celestial energy which could be used to enhance her body to attack or defend as she wished.
Her body now possess the explosive power like a tiny planet. She now packed quited the punch with her same delicate hands. As from now on, her journey would be getting tougher, she needed all these upgrades so she was now satisfied with her god come celestial body.
She looked same as before but if a higher being were to sence her energy, they would be accusing her of DNA stealing.
The next day Eir made her way to meet their father, she was briming with excess energy. Quite literally. She had to learn again to adjust the force she put in simple movements like walking or using her hands, she didn't plan to try it for battle right now, well, not in her home realme at least.
As she made her way towards throne room, Odin, who finally senced the presence her doughter was imitating was at a loss for words. Even he as the All father and with his knowledge and experience of thousands of years wouldn't dare to offend a Celestial. But her doughter was now somehow brimming with celestial energy. It was quite the shock that when his doughter said that she had 'retrived' the Tesseract for safe keeping, he just dismissed that topic and was more interested in how Eir get her hands on celestial power.
Eir told her father that it was exclusive to her constitution as Goddess of life, as someone else, even a god's body might not be able to endure the procedure.
After knowing her doughter's plan for continue traveling, he told her to be safe and to not get in trouble with higher beings.
After this was done Eir finally made some modification to her body to ease her travels.
She grew a set or retrievable Wings on her back. She got the inspiration from Seeing those rare flying horses used by Valkyries. Those were rare these days but Eir manage to get to study one and now she was also able to fly like a bird.
It was a fantastic feeling and with her celestial body, she didn't have to excert even to tiny bit of effort to reach the speed of sound. She finally had a taste of freedom.
Now, with all this, she was finally ready to continue her journey to gather infinity stones.