Dipper was sucked into the portal after the Government had left. He had gone downstairs to check the portal with Mabel, but the portal was malfunctioning at the time they checked it. Mabel was close to being sucked in, so Dipper took it upon him self to ram Mabel out of the way and gets himself in trouble. Once Dipper had past through the portal automatically shut off. Where had he gone? BoyxBoy, don't like? Please leave. Gravity Falls rightfully belongs to its owner Alex Hirsch.