After the end of the witch-trials, the werewolf became of interest in folklore studies and in the emerging Gothic horror genre werewolf fiction as a genre has pre-modern precedents in medieval romances (e.g. Bisclavret and Guillaume de Palerme) and developed in the 18th century out of the "semi-fictional" chap book tradition. The trappings of horror literature in the 20th century became part of the horror and fantasy genre of modern pop culture.