- How Shasta Set Out on his Travels
- A Wayside Adventure
- At the Gates of Tashbaan
- Shasta Falls in with the Narnians
- Prince Corin
- Shasta among the Tombs
- Aravis in Tashbaan
- In the House of the Tisroc
- Across the Desert
- The Hermit of the Southern March
- The Unwelcome Fellow Traveller
- Shasta in Narnia
- The Fight at Anvard
- How Bree Became a Wiser Horse
- Rabadash the Ridiculous
Overview
A boy by the name of Shasta is found as a baby and raised by Arsheesh, a Calormene fisherman. As the story begins, Shasta overhears Arsheesh agreeing to sell him to a powerful Calormene feudal nobleman. Shasta is relieved to discover that he is not really Arsheesh's son, since there was little love between them. While Shasta awaits his new master in the stable, Bree, the nobleman's stallion, astounds Shasta by speaking to him. The horse suggests that they escape a life of servitude by riding north together to Narnia. They meet another pair of escaping travellers, Aravis, a young Calormene aristocrat, and her talking horse, Hwin. Aravis is fleeing to avoid a forced marriage with the Tisroc's grand vizier.
The four must travel through Tashbaan, the bustling capital of Calormen. There they encounter a procession of visiting Narnian royalty, who mistake Shasta for Corin, a prince of Archenland, who was separated from their group earlier that day. Unsure what to do, Shasta goes with the Narnians and overhears their plans to escape from Calormen to prevent a forced marriage of Queen Susan with the Tisroc's son, Rabadash. Shasta escapes when the real Prince Corin returns.
Meanwhile, Aravis has been spotted by her friend Lasaraleen. She asks Lasaraleen not to betray her, and to help her escape from Tashbaan. Lasaraleen cannot understand why Aravis would want to abandon the life of a Calormene princess, but she helps Aravis escape through the palace. On the way, they hide when the Tisroc, Rabadash, and the Grand Vizier approach. Unfortunately, they've hidden in the very room where the men are about to meet. Aravis overhears the Tisroc and Rabadash as they discuss the Narnians' escape. The Tisroc gives Rabadash permission to invade Archenland and Narnia while High King Peter is preoccupied battling giants to the north.
Outside Tashbaan, Aravis rejoins Shasta and the horses. The four set out across the desert, and a lion (later revealed to be Aslan) frightens the travellers into fleeing swiftly enough to outrun Rabadash's army. Shasta arrives in Archenland in time to warn King Lune of the approaching Calormenes, and the army of Archenland prepares to defend their kingdom. Shasta is then separated from them and heads to Narnia, where he also warns the Narnians of the plot. When Rabadash and his army arrive at King Lune's castle, they are disappointed to find their prey on guard and waiting for them. A battle ensues, with no clear outcome until an army from Narnia, led by Edmund and Lucy, reinforces the defenders. Shasta and Corin, having become friends, sneak into the battle with varying success. The Northern alliance of Archenland and Narnia wins a complete victory over the Calormenes, and Rabadash is captured.
Rabadash rebuffs King Lune's merciful offer of conditional release. Aslan appears and warns Rabadash to accept King Lune's mercy before his doom strikes. Rabadash rebuffs Aslan as well, so his doom strikes: he is turned into a donkey. His true form will be restored if he stands before the altar of Tash at the Autumn Feast. However, he will become a donkey again if he strays more than ten miles from the Temple of Tash, and there will be no return. For this reason Rabadash pursues peaceful policies when he becomes Tisroc as he dare not risk the ten mile limit by going to war. People call him "Rabadash the Peacemaker" but in reality they consider him "Rabadash the Ridiculous" as they never forget his donkey transformation. His name becomes a synonym for a stupid person over future generations in Calormen.
The victorious King Lune recognizes Shasta as Cor, the long-lost identical twin of Prince Corin and, as barely the elder of the two, the heir to the throne. Aravis and Cor live in Archenland thereafter and eventually marry years later, and their son becomes the most famous king of Archenland.