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