In C. S. Lewis's The Horse and His Boy, Aravis and the horses find themselves in quite a predicament when they are stuck in Tashbaan. Let's recall what happens.

After Shasta is taken away by the Narnians, who mistake him for the prince, Aravis meets her friend Lasaraleen. This is a real problem since Aravis is running away and certainly does not want to be recognized. Lasaraleen, however, takes Aravis home with her and makes sure that the two horses are well stabled.

Aravis and the horses cannot stay in Tashbaan, though. Lasaraleen comes up with a plan to get Aravis out of the city, and that works eventually, but only after some snags along the way. There is still the problem of getting Hwin and Bree out of the city. They are fine horses and must not attract too much attention. However, if Lasaraleen's groom takes the horses to the gate, people will think that they are simply animals belonging to one of the noble families.

The horses agree to the plan when Aravis tells them, and the groom leads them out to the Tombs, saddled and bridled with food and water in their bags. Everything goes as planned, and the groom even waits to guard the horses until Aravis arrives.