Gloom

Size/Type:	Medium Monstrous Humanoid
Hit Dice:	25d8+225 (337 hp)
Initiative:	+26 (+18 Dex, +8 Superior Initiative)
Speed:	30 ft.
Armor Class:	40 (+18 Dex, +12 insight)
Base Attack/Grapple:	+25/+36
Attack:	+10 keen dagger of human dread +54 melee (1d4+21/17-20)
Full Attack:	+10 keen dagger of human dread +54/+49/+44/+39 melee (1d4+21/17-20)
Space/Reach:	5 ft./5 ft.
Special Attacks:	Fear gaze, sneak attack +13d6
Special Qualities:	Blindsight 60 ft., opportunist, quiescence, spell-like abilities, SR 35, DR 10/epic
Saves:	Fort +17, Ref +32, Will +21
Abilities:	Str 32, Dex 46, Con 29, Int 26, Wis 25, Cha 30
Skills:	Bluff +38, Climb +39, Hide +46, Intimidate +38, Jump +39, Listen +35, Move Silently +66, Spot +35, Survival +35, Tumble +46
Feats:	Dodge, Improved Initiative, Improved Critical (dagger), Mobility, Spring Attack, Weapon Finesse, Weapon Focus (dagger)
Epic Feats:	Sneak Attack of Opportunity, Superior Initiative
Environment:	Any urban
Organization:	Solitary
Challenge Rating:	25
Treasure:	Nonstandard (just its dagger)
Alignment:	Usually lawful evil
Advancement:	25+ HD (Medium-size)

In the hand of any other creature but a gloom, the dagger is a +5 keen dagger.

A gloom’s natural weapons are treated as epic for the purpose of overcoming damage reduction.

Combat

Fear Gaze (Su)

Viewing the gloom’s face inspires terror. Creatures that meet the gloom’s gaze must succeed at a Will save (DC 32) or suffer the effects of a fear spell as cast by a 20th-level caster. The DC is Charisma-based.

Opportunist (Ex)

This ability functions like the rogue class feature of the same name.

Sneak Attack (Ex)

A gloom is able to sneak attack as a 25th-level rogue, dealing 13d6 extra damage.

Quiescence (Su)

A gloom is constantly silent, as per the silence spell, although the area does not extend beyond the creature itself. This quality gives it a +20 racial bonus on Move Silently checks (it is still possible for a gloom to create noise, such as by bumping into something that scrapes on the floor or by sounding a chime). The gloom can lower this effect at will.

Spell-Like Abilities

At will—shadow walk; 3/day— true strike. Caster level 20th; save DC 20 + spell level. The DC is Charisma-based.