Here's the next A monster in the book:
NO. ENC.: 1d4 (1d4)
ALIGNMENT: Chaotic (evil)
MOVEMENT: 240’ (80’)
ARMOUR CLASS: 0
HIT DICE: 8
DAMAGE: See below
HOARD CLASS: XVII
AVG. HP: 36
Apparitions appear as translucent, skeletal creatures dressed in tattered rags. Their eyes burn with a crimson light.
Apparitions are undead spirits of creatures that died as the result of an accident. The twist of fate that ended their life prematurely has driven them totally and completely to the side of evil. An apparition is often mistaken for a ghost or spectre. Apparitions hate all living creatures and attack them on sight. Apparitions are essentially ethereal creatures. They exist mainly on the ethereal plane but can project their image onto the material plane. An ability akin to E.S.P. enables them to detect potential victims up to 100 feet away.
An apparition attacks by fear, implanting a suggestion in a victim’s mind that it is being strangled by the apparition’s bony claws. No to hit roll is required, and the apparition phases on to the material plane for one round per attack it makes. This is the only time the apparition may be struck and only magical or silver weapons will affect it.
Victims must make a roll under their intelligence scores on 3d6 to resist an apparition's suggestions. If they succeed, they are immune. If they fail, then they are stricken with terror. Next, they must roll 3d6 against their constitution. If they roll under their constitution score, then they flee in terror for 1d4 rounds. If the roll equals or exceeds their constitution, then they suffer a major seizure and die instantly.
Any humanoid slain by an apparition becomes an apparition after 2d4 hours. Victims may be raised from the dead, but only if the attempt to do so is made within one hour of their passing.
Apparitions are powerless in sunlight and will flee from it. They will also be reluctant to approach mirrors or objects made of silver.