Completed in the spring of 1950, "The Horse and His Boy" is the first of the books that does not follow the previous one sequentially; instead, it takes place during the reign of the Pevensies in Narnia, an era which begins and ends in the last chapter of The Lion, the Witch and the Wardrobe. The story is about Bree, a talking horse, and Shasta, a young boy, who have both been held (albeit separately) in bondage in Calormen, a country to the south of Narnia. By chance, they meet each other and plan their return to Narnia and freedom. On their journey they discover that the Calormenes are about to invade Narnia, and they alert Narnia and its allies.