Nancy Drew: Warnings at Waverly Academy Easter Eggs

When you have obtained all four gold stars, go to the cellar and look at the slats with the star indentations. On the slat that has four indentations, place the stars in this order from top to bottom:
cat, bug, gorilla, raven
The slats will fall away... more

In the library computer catalog, input "ISBN 4755568135314" (without the quotation marks). Back away and go to the shelf left of the door. Pick up the pink book and look inside it to find the easter egg.

Once you have managed to enter the locked classroom, go forward once and then turn around so you are facing the door. Go to the left column to look at the raven. Once you are looking at it, press the following parts the following number of times:
eye... more