Lloigor

Lloigor is a monster. It first appeared in the Innsmouth Horror expansion.

Lloigor

Edition(s)	Innsmouth Horror x3
Movement	Unique
Awareness	+0
Home Dimension	Square Another Dimension Another Time
Abilities	Weapon Immunity
Rules Text Instead of moving, all investigators in this or any adjacent locations or street areas lose 1 Sanity and 1 Stamina.
Combat Stats Horror Toughness Combat Rating Damage   Rating Damage -1 3 2 -2 3

Mythos Source

The monster version of the Lloigor first appeared in The Return of the Lloigor (1969), written by Colin Wilson. The name Lloigor first appeared in Lair of the Star Spawn (1932), written by August Derleth and Mark Schorer, where it's a twin being to Zhar.