De Vermiis Mysteriis
From Arkham Horror Wiki
De Vermiis Mysteriis is a unique item. It first appeared in the Dunwich Horror expansion.
Card info
Type: Tome
Arkham Encounters: Exhaust and spend 2 movement points to make a Lore (-2) check. If you pass, close 1 open gate (it cannot be sealed) anywhere in Arkham (whether or not you've explored it), lose 1 Sanity, and discard De Vermis Mysteriis.
Price: $5
Mythos Source
De Vermiis Mysteriis first appeared in The Shambler from the Stars (1935), written by Robert Bloch.
Clarification
Misprint: Card should be used during Movement Phase, not Arkham Encounters.
