When Demona summoned Puck through Titania's Mirror, one of her first wishes was to ride the world of the human Elisa Maza. Puck did so by turning her into a Gargoyle.
Changing Elisa Into a Gargoyle
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1/2
Effect
Incantation
Thy sight Demona doth offend,
so Puck will hasten to amend.
Begone Elisa, human born,
and be no more as you were formed!