Gaiman, Neil. Stardust.
Fic G127s
The dying lord of Stormhold had quite an arm. When his surviving sons (and those already assassinated) gathered to learn who would succeed him, he took the massive topaz which was the symbol of his reign and threw it into the night sky, where it brought down a star. The son who found the topaz, would win Stormhold for his own.
Many others witnessed that fall--among them, Tristan, who promised the girl he loved the falling star; and the Lilim, three ancient witches who craved the star for the dazzling youth it could restore. The star, a lovely young woman with a broken leg and a topaz at her throat, also had some very definite ideas about the matter. Join them in a dangerous race across Faerie, in search of their heart's desires.