From the publisher:
On a desperate journey, two runaways meet and join forces. Though they are only looking to escape their harsh and narrow lives, they soon find themselves at the center of a terrible battle. It is a battle that will decide their fate and the fate of Narnia itself.
The Horse and His Boy is the third book in C. S. Lewis’s classic fantasy series that has drawn readers of all ages into a magical land where horses talk and destiny awaits for over sixty years. This is a novel that stands on its own, but if you would like to return to Narnia, read Prince Caspian, the fourth book in The Chronicles of Narnia.