Here's one we meant to do awhile back. It's probably the oldest non-updated monster remaining from Dragon Magazine.
Dragon #7:
The Prowler
Hit Dice: 14
Movement: 12
A/C: 1
Align: Evil - Highly Intelligent
50% Magic Resistant
Attacks: Constriction, 4-48 hp/turn
Bite, 1-8
No. Apearing: 1
When looking into the eyes of the Prowler it is necessary to make a save vs magic or the victim will be irrevocably mind blanked, a zombei under the control of the Prowler. (Those that save the Prowler will attempt to crush within its powerful coils.) The zombeis then become the recipient of the monster’s eggs which she carefully injects underneath the skin of the victims with the brown tentacles that line her mouth.*
The Zombeis are then turned loose to wander aimlessly about for 2-8 days until the eggs hatch and disclose their wriggling contents, cute little baby prowlers. The zombei now becomes their first meal, he lays down calmly as the little devils pick his bones clean.
Some exceptionally intelligent prowlers have been known to form hatcheries. They charm large numbers of people and use them as guards and as hosts for their eggs. These hatching grounds will usually be found in abandoned caves or underground.
To restore the minds of the zombeis it is necessary to acquire the services of 3 Patriarchs, who simultaneously cast dispell evils upon the zombei who then regains his mind.
*However no matter how tenderly she does this the victim still takes 1-8 points of damage.
Dragon #37:
The Prowler
FREQUENCY—Rare
NO. APPEARING—1
A.C.—1
MOVE—12”
HIT DICE—14
% IN LAIR—10%
TREASURE TYPE—Nil
NO. OF ATTACKS—2
DAMAGE/ATTACK—Bite 1-8, Constriction 4-48
SPECIAL ATTACKS-Gaze
SPECIAL DEFENSES-Nil
MAGIC RESISTANCE—50%
INTELLIGENCE—High
ALIGNMENT—Neutral Evil
SIZE—L (9-16’ long)
PSIONIC ABILITY—Nil
Attack Defense modes—Nil
When looking into the eyes of the Prowler it is necessary to make a save vs. magic or the victim will be irrevocably mind blanked, becoming a Zombie under the control of the Prowler. (Those who make the save, the Prowler will attempt to crush within its powerful coils.) The Zombie(s) then become the recipient of the monster’s eggs, which she carefully injects underneath the skin of the victims with the brown tentacles that line her mouth. No matter how tenderly she does this, however, the victim still takes 1-8 points of damage. The Zombies are then turned loose to wander about aimlessly for 2-8 days until the eggs hatch and disclose their wriggling contents, cute little baby Prowlers. The Zombie now becomes their first meal; he lies down quietly as the little devils pick his bones clean.
Some exceptionally intelligent Prowlers have been known to form hatcheries. They charm large numbers of people and use them as guards and hosts for their eggs. These hatching grounds will usually be found in abandoned caves or underground.
To restore the minds of the Zombies, it is necessary to acquire the services of 3 High Priests (9th-level Clerics or higher), who simultaneously cast Dispel Evil spells upon the Zombie, who then regains control of his mind.