Dipper Pines. She is optomistic, friendly and a little silly. Mabel as well as Dipper are spending their summer at their Great Uncle Stan's tourist attraction, The Mystery Shack in Gravity Falls. The two twins discover many secrets.Mabel Pines is the older twin sister of
- In Gravity Bound one of her Don't Care names is "Ariel" referencing the twin sister of Gravity Falls creator Alex Heirsh.