At Long Last //Gravity Falls x Powerful! Reader

On a fateful day, where (Y|N) Had decided to return the book she ran into the famous twins.
To be exact, the pine twins. She befriended them immediately, and they slept over.
But a few days later, a tragedy strikes Gravity Falls and she has no choice but to save the Pine Twins.

- I sincerely apologize if there are any mistakes, I do not own the characters
I own the plot and (Y/N).