*whispering*
Dipper: I can't wait to find out where this portal leads to.
Mabel: just jump I'm already.
Dipper: okay, okay.
Dipper jumps into the portal followed by Mabel
Dipper: Mabel, you gotta see this.
Mabel looks up and she couldn't believe what she saw.
Mabel: no way.

YOU ARE READING
A Different Kind Of Portal
FanfictionSo there might be a series of Books with Portals and Gravity Falls I make. My first one was about two people who enter a portal into their favorite show. This one is about Mabel and Dipper, etc meeting the future including maybe something called, oh...