Summary
This is an extended kid-friendly re-write of my dark Grim Adventures fanfic "The Big Pumpkin Head Adventure" When Billy, Mandy and Grim are out trick-or-treating, Grim meets a young girl who he falls in love with, and he ditches Billy and Mandy. Things get bad when Jack O' Lantern comes back with a new evil partner and they kidnap Grim.