A very flourishing, though till recently quite hidden, branch of weird literature is that of the Jews, kept alive and nourished in obscurity by the sombre heritage of early Eastern magic, apocalyptic literature, and cabbalism. The Semitic mind, like the Celtic and Teutonic, seems to possess marked mystical inclinations; and the wealth of underground horror-lore surviving in ghettoes and synagogues must be much more considerable than is generally imagined.