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In page Maria Gripe:

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Much of her writing, particularly the later work, is suffused with a supernatural or mystical element. Fairy-tales were recurring motifs and these were often intertwined with psychological realism presented in a poetic style.[1] The change in her writing style from her less mature work was partly a result of the influence of Edgar Allan Poe, Charlotte and Emily Brontë, and Carl Jonas Love Almquist, and partly a reaction to violence in entertainment that had begun to gain ground in cultural expression; Gripe sought to manufacture plot tension in less overt ways.