I've been debating for a while whether or not I was going to have this happen, since it drastically changes Persephone's place in society. She obviously can't hide away in her parents basement in this state. I decided a while ago that Persephone would be a "mountain troll", a subtype of troll that grows much, much larger than other trolls, and tends to be much more calm and compassionate than their other kin, so much so that other trolls tend to find their personalities repugnant.

Her horns have become longer and, like her tail, can't be hidden by her shape-shifting ability (an ability becoming more and more useless as she grows larger). I don't want to use exact figures, but let's say this is how big Persephone will be somewhere between her 30's and 50's. Through her teens and mostly into her early 20's, she'll still be just short enough to pass herself off as a human.

Clothing for her is an issue. It's far more expensive for things to be tailored for her than for a normal sized person, and she keeps outgrowing them.

She's a bit frightening to people who've never seen her before, and is monstrously strong, but she is very much a gentle giantess.