Threshold of Transcendence

A story I'm currently working on(rewriting)! I'll give a short summary below

TW: terrible writing, swear words, mentions of child neglect/abuse

Ace is your average non-binary teen. The art kid, no will to live, and died hair. But they have a secret... MIRACULOUS SIMPLY THE- no I'm kidding sorry.

Ace has a missing sister who went missing a day ago. They find her diary and decide to look for clues of her location, but instead, they become sternum deep in a horrible sounding cult that is looking for a way to ascend from their human bodies and have decided Ace's sister is perfect to contribute to the "cause" at the end, there's a strange incantation which ace(who has no common sense) decides to try as it may be a lead...

God, what was year ago me on 😭