While a hex is a curse commonly associated with witchcraft, the spelling "hexe" is the direct German translation for the word "witch," being a huge indication that the title will be set in Germany.

An engraving showing a German witch finder accusing a woman ... starting the North Berwick witch hunt. Under torture, Geillis Duncan named several other people as being witches, including Euphame ...

A German science ... The scale of this witch hunt caused people to question the whole process of trying people for witchcraft. An illustration from George Mackenzie's 1678 book 'Law and Customs ...