The Peanut Butter Crackers will be used to summon the dog. He will dig right where you dropped the cracker. When he digs his hole, the time capsule appears! And you have finally solved Big Nate Island! Congratulations!
How to get the Peanut Butter Crackers
Run back to the playground and go inside the clubhouse at the top with the “Kids Only” sign. Once you’re inside, click on the piece of paper that says “Go to Jail.” This is a simple hangman game and Big Nate will challenge you to a game. Once you solve the word, he’ll give you some old peanut butter crackers as a prize.