The Girl Soka and her Kind Horse

The Girl Soka and her Kind Horse is a Tibetan tale published as part of the compilation of The Golden Corpse (Tibetan: Mi ro gser sgrung), a compilation of tales popular in Tibet. It is about the marriage between a human maiden and demon disguised as a suitor, but she escapes to another kingdom where she marries a human prince; later, the horse sacrifices itself for its mistress after it rescues her from great peril.

Source: Wikipedia — The Girl Soka and her Kind Horse (CC BY-SA 4.0)