Emily Bronte's only novel, Wuthering Heights remains one of literature's most disturbing explorations into the dark side of romantic passion. Heathcliff and Cathy believe they're destined to love each other forever, but when cruelty and snobbery separate them, their untamed emotions literally consume them. Emily Bronte's only novel, Wuthering Heights remains one of literature's most disturbing explorations into the dark side of romantic passion. Heathcliff and Cathy believe they're destined to love each other forever, but when cruelty and snobbery separate them, their untamed emotions literally consume them.