Leo Valdez felt unwanted. His friends didn't need him anymore. Mabel Pines didn't think that her life was interesting. Her brother was in college, Grunkle Stan was in jail. But when Mabel randomly rides a Pegasus to New York, she finds the adventure she's been wanting. In the form of a grease covered boy and a magical toenail.

Gideon has a new plan to kill Dipper- trapping him in the demigod's world.

Turns out that Mabel and Dipper are both adopted and NOT even related! When they find out some family secrets, they have to go to Camp Half-Blood and find out who their real parents are.

Dipper and Mabel Pines find out something shocking about their family's past. Soon the two are shipped off to New York. Both wanting adventure like Gravity Falls, they get a little more than they asked for. The story that was erased by the gods has now been uncovered and involves the combining of two different worlds, both buried in secrets. Read and review!

: Mabel and Dipper have been left in Gravity Falls even after summer ended. Stan enrolled them in Gravity Falls Middle School, and life is normal, well, as normal as it could get in that weird little town. That is, until Stan reveals the Pines family's biggest secret, and greatest shame. They aren't twins, nor are they completely human.