The book must have been a promotional item made by Disney, as it lacks a UPC and is marked "Not for sale".

The book is brand new, but somehow some water has created a wave about a 4 square inch stretch, down the middle towards the top of each page.  The pages are otherwise very clean.   

Released 2005 by Harper Kids Entertainment.                                    
The story book follows the story of Narnia.  A premium book in its day.

Story Outline:

An ordinary game of hide-and-seek leads to the discovery of a lifetime! Before they know it, Lucy Pevensie and her siblings have traveled through a dusty old wardrobe and entered the magical land of Narnia. Once in Narnia, the real adventure begins as Peter, Susan and Lucy race to save their brother Edmund from the White Witch, the evil Queen. With help from the kind creatures of Narnia, the Pevensies seek out Aslan, the mysterious Great Lion, who is their only hope in the struggle against the White Witch.

With this photo-packed retelling of the movie, you too can travel through the wardrobe and visit the magical land of Narnia.