Monstrous Monday: Schreckengeist

I was doing some research yesterday morning for a couple of different projects I can't wait to share with you all and I came across a couple of really fun things.  First, and I'll talk about her later, might be the first witch NPC I EVER created. The second is today's monster.

I was going through my copy of B1 In Search of the Unknown and found a monster I had forgotten.  The  Schreckengeist, or "fear ghost" is a low-level ghost I used to fill a couple of needs.  I wanted a ghost-like creature to send against low-level aka Basic parties and I wanted an undead creature that "turned" the living.

Here is the Schreckengeist for my two current favorite Basic clones.

Schreckengeist
(Blueholme Journeymanne Rules)
AC: 3
HD: 3d8
Move: 30
Attacks: 1 special, scream of fear.
Alignment: CE
Treasure: None
XP: 175

Schreckengeist
(Old-School Essentials)
The ghost of a former adventurer. Its face is distorted in fear and rage.
AC 3 [17], HD 3 (13hp), Att 1, scream of fear, THAC0 20 [0], MV 60’ (20’), SV D13 W13 P14 B15 S17, ML 10, AL Chaotic, XP 175, NA 1 (1d4), TT none
▶ Scream causes fear as per the spell.
▶ Infravision: 60’.
▶ Undead: Not effected by sleep, charm or hold spells.  Silvered weapons to hit. Turned as a Ghoul.

The Schreckengeist is the ghost of an adventurer who died mid-adventure and was never raised or their body returned home.   The rumor is that a schreckengeist can only happen to adventurers who die on their first adventure, but they can happen to any adventurer who dies before they reach 4th level.  Not all adventurers who die though become schreckengeists.  The circumstances have to be just right.  The victim needs to have died in fear and/or great pain and their body never recovered. 

Now they are cursed to roam the dungeons they sought to explore.

The schreckengeist is incorporeal and can not be struck by normal weapons, only silvered ones.  Likewise, it can not attack with physical attacks, although in it's rage it will try too.  It's only attack is a scream of fear.  Characters of 3rd level or below must Save vs. Petrification or flee in terror as per the Fear spell.  Normal Humans and creatures below 1 level/HD get no save, characters above 4th level/HD are immune.

Schreckengeist are turned as ghouls.