Gravity Falls: Dipper and Mabel and the Curse of the Time Pirates' Treasure!: A Select Your Own Choose-Venture!

Gravity Falls:: Dipper and Mabel and the Curse of the Time Pirates' Treasure!: A Select Your Own Choose-Venture!

Gravity Falls: Lost Legends: 4 All-New Adventures!

Gravity Falls: Dipper's and Mabel's Guide to Mystery and Nonstop Fun! (Guide to Life)