marinesmarcelino,Think of Page 2 as being the "name" of the page. Then this sentence is like the following, which don �t use the article:
They climbed Mount Everest.
I live on Escalon Street.
I am going to University Hospital tomorrow.
Have you visited Notre Dame University.
Things with numbers (if the number comes after the noun) are treated this way.
Your office is in Building 7.
She is in Room 423.
Notice that we even capitalize the noun, as if it were a name.
Bruce