 On the other hand , L. Sprague de Camp considered Morris 's fantasies to be not wholly successful , partly because Morris eschewed many literary techniques from later eras . In particular , De Camp argued the plots of the novels are heavily driven by coincidence ; while many things just happened in the romances , the novels are still weakened by the dependence on it . Nevertheless , large subgenres of the field of fantasy have sprung from the romance genre , but indirectly , through their writers ' imitation of William Morris . 
