If you fellas are interested in updating some of these creatures for the CC, and if Echohawk wouldn't mind posting the stats as we go, I'd be happy to start a "Converting Imagine Magazine Creatures" thread.
No. APPEARING: Usually 2 (one of each type, see below)
ARMOUR CLASS: Not applicable
MOVE: Instantaneous (up to 10 feet)
HIT DICE: 1+6
% IN LAIR: 100%
TREASURE TYPE: Nil
# ATTACKS: Nil
SPECIAL ATTACKS: See below
SPECIAL DEFENCES: See below
MAGIC RESISTANCE: Total
SIZE: Not applicable
PSIONIC ABILITY: Nil
Attack/Defence modes: Nil
LEVEL/xp VALUE: III/100 xp + 2xp per hit point.
These non-corporeal entities may be thought of as fragments of an undead creature. They are created when the brain and heart of a corpse are removed to be interred separately in containers known as canopic jars.
Any undead creature which arises from this corpse will be sundered into three parts. The first will be one of the usual kinds of undead. This will develop from the main corpse and will have all the usual attributes except that, lacking a brain, it will be non-intelligent and, lacking a heart, will be fearless even to the extent of being resistant to the turning effect of clerics. Clerics (and Paladins) affect them as if they were 3 levels below their actual level. Therefore, clerics of levels 1-3 cannot affect these undead.
The other two fragments, which arise from the brain and heart, are known as canopic shades. These shades are quite separate from the main undead and remain inside their canopic jars until a living being comes within 10 feet. When this occurs the shade will move instantaneously from the jar into the creature's body and there try to fulfil its one desire, to become free of the earthly plane by killing the creature and finding rest along with it.
The ability of a character to resist the attack depends on two of its ability scores; intelligence and wisdom in the case of a shade which arises from the brain, and strength and constitution in the case of the shade from the heart.
The only thing which can prevent a canopic shade from entering a character is a protection from evil (spell or otherwise). Failing this, the shade will automatically gain entry and begin to attack the creature from within. Each round that the shade is within the character the DM should subtract d8 x d6 (i.e. d8 multiplied by d6) from the current total of the character's two appropriate ability scores and apply the results as follows:
Total of abilities minus d8 x d6 is:
0 to 35: Shade takes one hit point of damage
-1 to -12: Character loses d4 points (temporarily) from one randomly determined ability score.
-13 to -34: Character loses one point (permanently) from one randomly determined ability score.
If any of the character's ability scores falls below 3 (including temporary effects), it will be fatal. If the victim dies the shade will pass away with it and not attack any other character.
Canopic shades will always attack until destroyed (reduced to zero hit points) or until the victim dies.
A victim managing to destroy a shade will gain one point on one randomly determined ability score.