How many pages in the magicians nephew?

The Magician's Nephew the movie has not been released yet, as Walden Media is making the Narnia movies in the publicationorder which is as follows: (1) The Lion, the Witch & the Wardrobe (2) Prince Caspian (3) The Voyage of the Dawn Treader (4) The Silver Chair (5) The Horse & His Boy (6) The Magician's Nephew (7) The Last Battle