It's the Great Pumpkin, Charlie Brown (Peanuts Holiday TV Specials) by Charles M. Schulz, Justine Korman Fontes

Adapted for the first time since the late 1960s, this 35th anniversary tie-in to the Peanuts' classic television special features Linus giving up trick-or-treating on Halloween to await the arrival of the Great Pumpkin in the pumpkin patch.