True Magick
From Arkham Horror Wiki
True Magick is a unique item. It first appeared in the Dunwich Horror expansion.
Card info
Type: Tome
Movement: Exhaust and spend 1 movement point to make a Lore (-1) check. If you pass, gain 1 Clue token and lose 1 Sanity.
Price: $5
Mythos Source
True Magick first appeared in The Seventh Incantation (1973), written by Josef Payne Brennan.