Instructions
Go to the Mattel website and click on "Games" in the top menu.
Scroll to the bottom of the "Games" page. Click on "Customer Service."
Type in the full name of the game, "Harry Potter &the Sorcerer's Stone Trivia Game," in the "Guided Search" box in the upper left corner of the "Consumer Relations Support Center" page.
Click on game number 42748, which is the first "Harry Potter" trivia game on the list. This will take you to a page with a link in blue. Click on this to download the instructions in .pdf format. Print the instructions.
Contact the Mattel Consumer Relations Department directly at 1-800-432-5437 if these instructions do not fit your game. Changes are frequently made these products.