Where do you get the document on great pumpkin island?

Answer 1

It is with Lucy and Charlie Brown on the football scene. You need the pen from Linus's desk.

Complete the pumpkin weighing and rolling, give Pigpen the bag and Linus the sucker. Once you have the invitation, go to Charlie Brown's back yard where Snoopy will gather a few leaves. Linus jumps in the pile, then leaves to mail his letter. Follow him, then come back for his blanket. After he mails the letter, you can come back left to see Lucy and Charlie Brown.