The Hobbit is a fantasy novel.
There are many works where the boundary between fantasy and other works is not clear; the question of whether the writers believed in the possibilities of the marvels in A Midsummer Night's Dream or Sir Gawain and the Green Knight makes it difficult to distinguish when fantasy, in its modern sense, first began
Fantasy is distinguished from the genres of science fiction and horror by the respective absence of scientific or macabre themes, although these genres overlap

