Keening Spirit* (CR 18)

Medium Undead (Augmented Humanoid)
Alignment: Chaotic Evil
Initiative: +0; Senses: darkvision 60 ft., Listen +5, and Spot +6

AC: 15, touch 15, flat-footed 15
Hit Dice: 15d12 (89 hp)
Fort +9, Ref +7, Will +13
Speed: Fly 30 ft. (perfect)
Space: 5 ft./5 ft.
Base Attack +7; Grapple -
Attack: incorporeal touch +11 melee touch
Full Attack: incorporeal touch +11 melee touch
Damage: 1d8 incorporeal touch
Special Attacks/Actions: destructive touch fear aura, keening, manifestation, rebuke undead 12/day
Abilities: Str 10, Dex 10, Con -, Int 14, Wis 18, Cha 20
Special Qualities: drow traits, incorporeal subtype, rejuvenation, SR 28, turn resistance +4, undead traits, (F Drow Clr15 of Kiaransalee)
Feats: Extra Turning; Greater Spell Focus (Necromancy); Greater Spell Penetration; Lightning Reflexes; Spell Focus (Necromancy); Spell Penetration; Survivor.
Skills: Concentration +23, Knowledge (arcana) +20, Knowledge (religion) +20, Listen +5, Search +4, Spellcraft +20, Spot +6, and Survival +6
Advancement: -
Climate/Terrain: Any land and underground
Organization: Solitary
Treasure/Possessions: None

Source: City of the Spider Queen

Cabrath Nelindra: Base creature: Female drow, Clr 15 of Kiaransalee

Against Ethereal Opponents: AC 10, touch 10, flat-footed 10.

Manifestation (Su): When Cabrath manifests, she becomes visible but is still incorporeal. She can use her destructive touch and keening abilities against material opponents.

Rejuvenation (Su): If destroyed, Cabrath restores herself in 2d4 days if she makes a successful level check (DC 16).

Augmented Subtype

A creature receives this subtype whenever something happens to change its original type. Some creatures (those with an inherited template) are born with this subtype; others acquire it when they take on an acquired template. The augmented subtype is always paired with the creature's original type. For example, a wizard's raven familiar is a magical beast (augmented animal). A creature with the augmented subtype usually has the traits of its current type, but the features of its original type. For example, a wizard's raven familiar has an animal's features and the traits of a magical beast.