First published in 1811, Undine is a cornerstone of German Romantic literature, a magical and tragic fairy tale that deeply influenced modern fantasy, opera, and the mythos of the water spirit. The story centers on Undine, a beautiful water nymph raised by a kindly old fisherman and his wife on a secluded peninsula. In order to gain an immortal human soul, Undine must marry a mortal knight. When the wandering knight Huldbrand falls in love with her, they are wed, and Undine is transformed into a gentle, soulful woman. However, their happiness is short-lived when they return to human society. Trapped in a tense love triangle with Huldbrand's childhood friend, Bertalda, and haunted by the vengeful water spirits of her past-especially her uncle, Kühleborn-Undine's fragile mortal life begins to unravel. Infused with folklore, atmospheric beauty, and profound melancholy, Fouqué's novella explores the painful divide between nature and humanity, the heavy cost of love, and the burden of possessing a soul.