In addition to traditional religious subjects, Baldung was concerned during these years with the profane theme of the imminence of death and with scenes of sorcery and witchcraft. He helped introduce supernatural and erotic themes into German art, although these were already amply present in Dürer's work. Most famously, he depicted witches, also a local interest: Strasbourg's humanists studied witchcraft and its bishop was charged with finding and prosecuting witches. His most characteristic works in this area are small in scale and mostly in the medium of drawing; these include a series of puzzling, often erotic allegories and mythological works executed in quill pen and ink and white body color on primed paper. The number of Hans Baldung's religious works diminished with the Protestant Reformation, which generally repudiated church art as either wasteful or idolatrous. But earlier, around the same time that he produced an important chiaroscuro woodcut of Adam and Eve, the artist became interested in themes related to death, the supernatural, witchcraft, sorcery, and the relation between the sexes. Baldung's fascination with witchcraft began early, with his first chiaroscuro print (1510) lasted to the end of his career.