Reverse Pines (Gleeful Twins)
Mabel and her brother Dipper, had both found a turquoise gem, when they were little. Ever since. Dark magic slowly took over the both of them. They had grown a strong bond, and found a book. They are officially 14. They had given up on getting the book, Eventually, they move in with the Pines, for business reasons. After trouble starts brewing.
This is fully The REVERSE PINES. No Mable and Dipper Pines (sorry!), Only Mabel and Dipper GLEEFUL. (Maybe there will be a few extras with them but..) I don't own Gravity Falls, I don't own the art. There is Pinecest. There is some swearing!