The Girl Who Married a Monster. The Magic Story Cloud, #10

Everyone admires beautiful young Fifi. Proud and determined to marry only the most handsome and wealthy man she can find, she ignores the warnings of her loving parents and refuses every local suitor. Then one day, a mysterious stranger arrives at the marketplace. Tall, charming, and impossibly handsome, he seems like the perfect man Fifi has been waiting for. But the stranger hides a terrifying secret.
Far away in the eerie Land of Spirits, a creature called Skull has borrowed body parts from other spirits to disguise himself as a human. After winning Fifi's heart, he takes her away to his strange homeland, where she soon discovers the horrifying truth about her new husband. Surrounded by dangerous spirits and trapped far from home, Fifi fears she may never see her family again. Yet hope appears in the most unexpected place.
Skull's old mother, moved by Fifi's kindness and hard work, decides to help her escape before it is too late. With the aid of a magical spider, enchanted winds, and courage she never knew she possessed, Fifi begins a desperate journey back home.