|Mystery Name:||Arcane Understanding|
|Eldritch Tokens Placed:||No|
Humanity must not tamper with arcane energies. Yog-Sothoth is the very essence of magic, and a person under the influence of sorcery will inescapably become the Ancient One's puppet.
When an investigator passes a test while resolving a Spell effect, he may spend 1 Clue and discard that Spell after he has finished resolving its effects. If he does, place 1 Eldritch token on this card.