Mandrake, or Mandragora, is used to return those who have been Petrified to their original state.
魔苹果，又名曼陀罗草，通常是用来帮助被石化的人，使他们能够恢复原形。
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"Déjà Vu All Over Again: the Riddle of Otis Kaye's Masterpiece", a book-length study of this work, has just been published in Italian and English editions by Mandragora.