As the two ride through Calormen, they meet Bree and Shasta, the eponymous horse and boy, who are also escaping to Narnia. The four try to traverse Calormen's capital of Tashbaan undetected, but they are separated. Aravis meets her friend Lasaraleen, who is also a Tarkheena. Aravis and Lasaraleen explore the Tisroc's palace, and accidentally overhear a plan by the Tisroc and his son Crown Prince Rabadash to invade Archenland. When Aravis meets Shasta and the horses again at the tombs of the ancient rulers of Calormen, they agree they must urgently warn Narnia and Archenland.