Blue

"He missed Hogwarts so much it was like having a constant stomach ache. He missed the castle, with its secret passageways and ghosts, his lessons (though perhaps not Snape, the Potions master), the post arriving by owl, eating banquets in the Great Hall, sleeping in his four-poster bed in the tower dormitory, visiting the gamekeeper, Hagrid, in his cabin in the grounds next to the Forbidden Forest and, especially, Quidditch, the most popular sport in the wizarding world (six tall golposts, four flying balls and fourteen players on broomsticks)"
-Harry Potter an the chamber of secrets