@You will find me everywhere
Spoiler!
The ceremony starts off great, she even speaks to callisto and he found her mesmerizing in the dress he gave her but those emotions are short-lived cause that bi*** brainwashes Derrick and gets herself into the party, so Penelope then tries to divert the whole thing making it seem like she's welcoming Yvonne, then she asks the maid to get her a chalice, Yvonnes maid gets her a poisoned chalice and nobody knew cause both Penelope's and Yvonnes chalice didn't have their initials written on them like everyone else's. Penelope then noticed that the pendant vinter gave her was glowing as she was close to the other chalice. So she was fed up of everything and the changes occurring and switches the glasses and poisons herself