The mechanics of shapeshifting have been covered almost from the first recorded appearances of shapeshifting figures. That is, if we define the mechanics as “how does one change into an animal”. In fact, this definition of mechanics was a rather major concern for the medieval and early modern sources. The early modern authors were particularly concerned with the “how to” question, as represented by a couple examples:
- Peeter Stubbe—A True Discourse. Declaring the Damnable Life and Death of One Stubbe Peeter, a Most Wicked Sorcerer (1590)
- Henri Bouget—Discours des Sorciers (1602)
- Jean Grenier—his trial for werewolfism (1603)
- Thomas Blount—Glossographia: or a Dictionary, Interpreting all Such Hard Words of Whatsoever Language, Now Used in Our Refined English Tongue; With Etymologies, Definitions, and Historical Observations on the Same (1661)
There were many possible methods of transformation discussed by the sources from ancient Greece through the 17th century. For the purposes of conserving space, I’ll limit this post to the five most common elements or methods in no particular order.
Removal of Clothing
Many stories of werewolves, in particular, require that the person remove their clothing to change form. This is a symbolic removal of the trappings of civilization and humanity in order to embrace and become the beast. Clothing is also, historically, an important indicator of social status, so the soldiers and noblemen of classical and medieval literature removing the symbols of their status is also important. The shedding of clothing may, or may not, be connected to other elements, such as unguents and demonic instruction.
- Petronius—Satyricon (1st century CE)
- Marie de France—“Bisclavret” (late-12th century; though the condition seems to be genetic)
- Jean Grenier—Trial record (1603)
Often, particularly in classical and demonological sources, the potential werewolf must coat themselves in an unguent of some sort. In the demonological sources (14th to 18th centuries), the recipe for this unguent is often taught by a demon or devil in return for service.
- Virgil—Eclogue VIII (1st century CE)
- Jean Grenier—Trial record (1603)
A favorite throughout history is shapeshifting as a curse. This stretches back as least as far as ancient Rome, in the written record; at least as far as ancient Greece in the oral tradition. The source of the curse varies from the pagan gods to agents of the Judeo-Christian God to witches (or simply ambitious noblewomen) in some of the more misogynistic texts. In sources with divine origin of the curse, the curse seems to be permanent. In those in which human agency causes the curse, it is reversible.
- Ovid—Metamorphoses (8 CE; Jupiter curses Lycaeon)
- —“Arthur and Gorlagon” (12th century; Gorlagon’s wife curses him)
- Gerald of Wales—The History and Topography of Ireland (1188 CE; St. Patrick curses the people of Ossory)
- —Romance of William of Palerne (c. 1200; Alphouns’s stepmother curses him)
Bathing in a Special Lake
In some, particularly old, stories, the ability to change forms is the result of bathing in a particular lake. Something in the ritual, which echoes prehistoric rites, allows the bather to change shapes. It can, in some cases, be that the ritual awakens a latent genetic talent.
- Pausanias—The Description of Greece (2nd century CE; Demarchus, the Olympic boxer)
- Augustine—City of God (426 CE; discussion of the Arcadians)
Donning a Wolfskin
A few stories, more in the oral tradition than the written, indicate that wearing a specially prepared wolfskin (or other animal skin) is necessary for the transformation. This is often connected with other methods. For instance, in the case of Jean Grenier (1603), supposedly a devil taught Jean how to prepare a wolfskin with a special salve, coat himself in another substance, and wear the wolfskin to turn into a wolf.