le medium duergar dwarf humanoid 

Perception +4; darkvision

Languages Common, Dwarven, Undercommon

Skills Athletics +3, Stealth +5

Str +1 Dex +3 Con +3 Int +0 Wis +2 Cha -2

Items chain shirt, crossbow (3 bola bolts and 10 bolts), light mace

AC  17; Fort +7, Ref +7, Will +4

HP 16

Light Blindness

Speed 20 feet

Melee [>] light mace +5 (agile, finesse, shove), Damage 1d4+1 bludgeoning

Ranged [>] crossbow +7 (range increment 120 feet, reload 1), Damage 1d8 piercing or bola bolt

Occult Innate Spells DC 12; 2nd enlarge (self only), invisibility (self only)

Bola Bolt This shot deals no damage, but on a hit, the target must succeed at a DC 16 Reflex save or be knocked prone and immobilized until it is freed with a successful DC 15 check to Escape. This check can be attempted either by the target or a creature adjacent to the target.

Bestiary, page 138.