Wizard
The spooks like stories about wizards (as in Harry Potter), because the word puns with vizard, which is a mask. Spookery is all about masking one’s rulership.
Note: Etymologically, vizard is related to visor, while wizard is related to wise.
English wizard = magician; vizard = mask
vizard :
a mask (cover for the face, used for disguise, protection, etc.)
— English (Wikt)
wizard :
someone, usually male, who uses (or has skill with) magic, mystic items, and magical and mystical practices
— English (Wikt)