Monster: Shade Spirit, Least

Least Shade Spirit
Armour Class: 6
Hit Dice: 1+1**
Move: 150' (50')
burrow 210' (70')
Attacks: 1
Damage: 1-6 + body dissolution
No. Appearing: 1-3
Save As: C2
Morale: 10
Treasure Type: T
Alignment: Neutral
XP Value: 23

The least and oft-overlooked of the spirits of darkness, the spies and couriers and tiny advisors, the least shade spirits are delicate creeping membranes of sooty black lace, or masses of velvet-soft darkness that coil and climb. At other times a least shade spirit may resemble a tangle of slender night-dark serpents with blue-black eyes, or a burrowing coal-black moth with folded and crumpled wings. The "treasure" of a least shade spirit is the velvet shreds, darkness made tangible, that it sometimes leaves behind.

Least shade spirits attack for 1-6 hit points of damage; their deceptively soft touch dissolves the physical form, causing a -2 penalty to Armour Class for two rounds and a one-hour loss of 1 point of Constitution if a save vs. spell is failed. They are immune to non-magical weapons, take one extra hit point of damage from all elemental sources save for darkness, and will regenerate one hit point per round as long as they remain within a dark -- or at least notably dim -- environment.