Gritmen (CR 2; XP 600)
NE Medium undead
Init -3; Senses lifesense 60 ft.; Perception -4
Defense
AC 15, touch 7, flat-footed 15
(-3 Dex, +8 natural)
hp 27 (6d8)
Fort +2, Ref -1, Will +1
DR 10/bludgeoning; Immune undead traits
Offense
Speed 20 ft.
Melee 2 slams +7 (1d6+3)
Special Attacks blinding (R-DC 13)
Statistics
Str 16, Dex 5, Con —, Int —, Wis 2, Cha 10
Base Atk +4; CMB +7, CMD 14
Special Abilities
Blinding (Ex) When a gritman is deal damage from a slashing weapon, its body sprays sand up to 10 feet at the attacker. The attacker must make a Reflex save (DC 13) or be blinded for 1d4 rounds. The save DC is Constitution-based.

Gritmen are created from the skin of a humanoid creature that has been stitched together and filled with sand to replace its muscles and bones. They are the slowest of the besieged undead but in their sandy innards they hold the unnatural power to blind those that attack them making them an invaluable addition to the trio.