Caroline's Locket

Caroline's Locket, know simply as The Locket is a small heart shaped Locket given to Caroline Rose by her mother Lorrain who herself claims to have received it from her own mother. It was a precious and cherished item that Caroline held very dear to her in her young life. When Caroline died in a car accident when she was thirteen she was holding the locket admiring the picture inside. When she died her soul exited her body and shattered, as it began to fade into the afterlife, a few small fragments of her whole soul remained inside of the locket due to her emotional connection to it. The majority of her soul faded away and a few more fragments fell into the living body of Oliver Thompson who was kneeling over her as she died trying but unable to help her. Due to the crash the once pristine locket was now scratched and charred but after Caroline's death it was taken by Lorrain who held it in even greater admiration as she felt an incredible loss at Caroline's death. Some 9 years after the accident Lorrain crossed paths with a grown Oliver when he was visiting their home town in Buffalo New York and sensed the few remaining soul fragments of Caroline's inside of him. Lorrain had spent years desperately and pointlessly trying to fill the void left in her heart after Caroline's death. Trying many magical practices from Illusions and Constructs to even forbidden practices of Blood Magic and Necromancy. While nothing worked and her obsession drove her to lash out and eventually divorce her husband (Caroline's father) Pierce and nearly irreparably corrupted her soul Lorrain believed that by combining the Soul fragments within the Locket and those that lived on in Oliver could finally get her her daughter back in some way. 
After two years of debating what to do Lorrain approached Oliver transformed in an angel like form and claimed to be his Fairy Godmother who had come to help him in his failing career as a model. She gave him the Locket and claimed to achieve success he had to take on a new identity. Lorrain had enchanted the locket to transform Oliver with a form of Diamond Soul Magic instead of conventional Gold Transformation Magic. The Locket combined the soul fragments left behind by Caroline and transformed Oliver into an aged duplicate of her as the fragments that had lived on in his body had aged along with him over the past 11 years since her death. The Locket became attuned to Oliver and the soul fragments that allowed him to transform freely between himself and Caroline by opening and closing its latch. While Oliver was himself the Locket remained charred and scratched, but when he was Caroline the locket repaired itself and was once again pristine. The Locket also caused the effect of Caroline's personality slowly taking over Oliver as the soul fragments within him seemed to contain most of her physical traits and the ones left in the locket contained elements of her personality. By combining them Oliver not only transformed into a version of Caroline the same age as him but also slowly let her personality shift into control of him. After about two hours transformed Oliver began to think more girly and feminine thoughts, after four he began to feel more urges and think like Caroline, and finally after about eight hours Oliver was fully shifted in terms of personality and acted and thought like she was Caroline but still maintained the memory that she was actually Oliver, she simply no longer thought there was anything odd about her situation. In fact once she was fully taken over by Caroline's personality she seemed to act as if she had always been Caroline and lived in Oliver's place.
Oliver used the Locket to become Caroline and work as a female Model who found rapid success in the field thanks to Lorrain using her magic to influence casting agents and such to make Caroline the main choice for several high end modeling jobs. However due to the personality side effect Oliver found himself pulled into several awkward situations and his own career suffered due to being unable to maintain his muscular psyche and having time to work as himself. After several months of using the Locket Oliver finally had enough and came to learn the truth of Lorrain's lies from his arcane dog Anya. He then angrily tried to return the Locket but after Lorrain confessed why she did what she did Oliver decided that so long as she removed the personality shift effect he was willing to continue using the Locket to become Caroline for a few jobs part time and work on building up success as himself until he could fully support himself as a Male Model. On one of his last jobs as Caroline however he left the Locket with his girlfriend Brooke Chambers and it was stolen by Elsa Chevalier who wanted to replicates its effect to mass produce jewelry that cold turn men into women while simultaneously memory altering them and anyone they knew and making them loyal customers of her multiple clothing brands. The Locket was destroyed in the experiments used to replicate its effects and only a few remaining ashes were left behind from it. Caroline's soul fragments that were contained inside were then released once it was destroyed and faded into the afterlife like the rest. 
== Other Properties and Side Effects ==
* Every time Oliver used the Locket to transform it took him a maximum of 8 hours to fully shift to Caroline's personality under normal circumstances but an unforeseen side effect (even by Lorrain) was that it took another 8 hours to fully shift back to his own personality. While 8 hours was the maximum spending less time as Caroline also lead to less time for shifting back to normal for example spending only 4 hours of Caroline meant it would take only 4 hours for Oliver's personality to fully shift back. However 8 hours seemed to be the maximum time it took regardless of weather Oliver had spent much longer than that as Caroline. 
* Oliver's own body seemed to suffer from neglect due to spending so much time as Caroline as he had to eat a slimming diet to maintain Caroline's figure and did not have time as himself to work out and build up muscles as himself thus he went from moderately muscular to very slim and short over several months.
* Oliver was devoted vegetarian as himself but as Caroline's personality took over he nonchalantly ate meat and even developed a distaste for vegetarian cuisine like tofu and kale. 
* The Locket seems to act similar to the soul mitosis side effect of Chris Young's clothing transformation curse, by slowly causing the person who transforms to begin to think and act as if they were the person they have become. Also similar to the side effect that resulted in the creation of Christina Young's soul that was born with the memory of living as herself in place of Chris. This likely suggests that part of the Locket's enchantment was basically a more controlled form of this magical side effect. 
* The personality shift effect could be both removed and altered to take effect much faster by Lorrain. If she chanted a specific incantation Caroline's personality would completely take over within seconds rather than hours. Or she could alter the Lockets enchantment to keep the personality focused soul fragments contained inside of it and only cause those with the physical attributes to take effect and transform Oliver without effecting his mind. 
* Oliver himself did not have to be the one to open and close the locket for its effect to occur as evident by his friend Grayson opening and closing it causing his transformation without his desire. However presumably this effect needed Oliver to at least be close by as its can be assumed Elsa and her research team likely open and closed the Locket while experimenting with it yet he never transformed from long range. 
* The Locket was specifically attuned to Oliver due to his bond with Caroline's soul fragments and could not be adjusted to work on anyone anyone else. 
* The Locket used mostly Diamond or Soul based magics in order to transform Oliver in place of ordinary Gold based transformation magics this is why the locket transformed him into an aged version of Caroline and caused his sexuality to shift beyond even Lorrain's control as it would have used the physical elements from Caroline's soul fragments not simply the physical alterations of gold magic changing the targets physical characteristics. However there are likely a few Gold magic elements woven in to help the transformation along. As Lorrain is a Gold Blooded sorcerer she likely did this easily. 
* The Enchantment of the Locket was very complex as it seemed to take Lorrain two years to perfect it and plan it out and after several months of experimenting with only a minor example a full team of sorcerer designers working for Elsa still failed to replicate the same principal. 
* It is unknown if Lorrain purposely made the Locket turn from charred to pristine when Oliver used it or if it was an additional effect of its enchantment possibly restoring it based on how it was when owned by Caroline vs. Oliver. 
* The Locket seemed to work in conjunction with the soul fragments within Oliver as it transformed him. It turned him into an aged version of Caroline as the soul fragments within him had aged along with him after 11 years instead of turning him into a thirteen year old as she was when she died.