Egg of Symbols - start by opening one hint at a time to see if it's enough information
If you haven't found the Egg, it is located on the western side of the Campusarea, marked by a red dot in the picture below.
The symbols in the page are on the eastern side of the egg. When you find them, see if the form a shape of a number.
The symbols form number 7.
The answer to this riddle is therefore 7