Project LumberDork: A Gravity Falls Fan-Fic by SuperGroverAway
"Several years in the future, Wendy is invited to join the twins on a grand cross-country trip to investigate reports of paranormal activity across the US. But little does she or Dipper realize is that while they hunt and do battle with all kinds of monsters and oddities, Mabel is secretly working on her boldest plan ever...a plan to make the ultimate match."
Published in twenty-three chapters on FanFiction.net from February 2016 to June 2016. Cover art below by DeadSNESproject88 on DeviantArt.