A spell written in the 1630s for the summoning of faeries, annotated by three separate unknown persons at different times.
(I will give some sort of prize to anyone who correctly translates the magic-wibble. Bonus points for who Great Granddame Miranda was and what the significance of Birch & Heather is, also what the other plant illustrated is and why.)
Where?: Hurtfew Library
Neurons are: artistic