FREQUENCY: Very rare ([Cold Wilderness Swamp])
                                                                                                                                    FREQUENCY: Very rare ([Temperate Wilderness Swamp])
                                                                                                                                FREQUENCY: Very rare ([Tropical Wilderness Swamp])
                                                                                                                 FREQUENCY: Very rare ([Dungeon Level IV])
 

                                                                                                                            NO. APPEARING: 1-3
                                                                                                                            ARMOR CLASS: 10
                                                                                                                            MOVE: 9"
                                                                                                                            HIT DICE: 4
                                                                                                                            % IN LAIR: Nil
                                                                                                                            TREASURE TYPE: Nil
                                                                                                                            NO. OF ATTACKS: 1
                                                                                                                            DAMAGE/ATTACK: 1-8
                                                                                                                            SPECIAL ATTACKS: [SB]
                                                                                                                            SPECIAL DEFENSES: Regeneration and see below
                                                                                                                            MAGIC RESISTANCE: Standard
                                                                                                                            INTELLIGENCE: Low
                                                                                                                            ALIGNMENT: Chaotic evil
                                                                                                                            SIZE: M
                                                                                                                            LEVEL/X.P. VALUE: IV | 215 + 4

Each son is surrounded by a spherical zone of fear 30' in diameter;
a victim who fails to save against Magic when entering this ZONE will
FLEE in terror.

Each son regenerates 2 HP per round; its limbs will regenerate even
when severed, like those of a troll. Even after 'death' this process
will continue, so the only way of destroying these creatures is by fire,
lightning, acid or the application of holy water (or holy objects such
as {religious symbols} holy swords etc.) to their wounds.

The sons attack wtih a double-handed flailing of fists, causing 1-8
HP of damage.

Advanced Leprosy: Each successful hit has a 25% chance of inflicting
advanced leprosy on the victim. This disease will be fatal in 1-6 months,
and each month it progresses the diseased victim loses 2 points of charisma, permanently. <Comeliness?>
It can only be cured with a magic spell, cure disease.
The disease negates all cure wound spells.
Infected creatures heal wounds at 10% of the normal rate.
<cmp with leprosy if noted in DMG, cmp with mummy rot>
<from BLACKMOOR, page 53:
The social disease affecting all mummies, this is what causes wounds longer to heal.>

In addition, one worm per melee round will [jump] from a son's head to an
adjacent character in melee with a son. It needs the normal 'to hit' roll
to land on the victim and will burrow into him, taking <1> melee
round to penetrate the skin, during which time it may be destroyed by
the touch of cold steel, holy water or a blessed object. If it is not destroyed, the
worm heads for the victim's brain, taking 1-4 melee rounds
to reach it; during this time [remove curse] or [cure disease] will
destroy it and neutralise poison or [dispel evil] will delay it by 1-6
full turns. If the worm reaches the brain, the victim becomes a son of
Kyuss, the process of putrefaction setting in without further DELAY.

Sons of Kyuss are treated as mummies on the cleric/undead table.
Like other undead, they are immune to mind-influencing spells. <link to REF5?>
 

    by Michael MacDonald