ce medium fey 

Perception +12; low-light vision

Languages Aklo, Common

Skills Acrobatics +13, Intimidation +13, Nature +11, Stealth +13, Survival +12

Str +4 Dex +4 Con +2 Int +2 Wis +3 Cha +2

Camouflage A grimstalker can Hide in natural environments, even if it doesn't have cover.

AC  22; Fort +9, Ref +15, Will +12

HP 60

Speed 40 feet, climb 20 feet; woodland stride

Melee [>] claw +15 (agile), Damage 2d6+7 slashing plus grimstalker sap

Primal Innate Spells DC 22, attack +14; 3rd earthbind, wall of thorns; 2nd entangle, pass without trace, tree shape; Cantrips (3rd) tanglefoot

Grimstalker Sap (poison) Saving Throw DC 22 Fortitude; Maximum Duration 6 rounds; Stage 1 1d6 poison damage (1 round); Stage 2 1d6 poison damage and clumsy 1 (1 round); Stage 3 2d6 poison damage and clumsy 2 (1 round)

Woodland Stride A grimstalker can always find a path, almost as if foliage parts before it. A grimstalker ignores difficult terrain caused by plants, such as bushes, vines, and undergrowth. Even plants manipulated by magic don't impede its progress.

Bestiary 2, page 137.