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Thassilonian Sentinel, Marble Sentinel

Crouched on six jointed metal legs, this large humanoid head crafted from polished marble gazes intently with its glowing green eyes.

Marble Sentinel CR 4

Source Pathfinder #62: Curse of the Lady's Light pg. 90
XP 1,200
N Small construct
Init +7; Senses darkvision 60 ft., low-light vision; Perception +6


AC 20, touch 14, flat-footed 17 (+3 Dex, +6 natural, +1 size)
hp 43 (6d10+10)
Fort +2, Ref +5, Will +2
Immune acid, construct traits, magic


Speed 40 ft., climb 20 ft.
Melee 2 claws +12 (1d4+5)
Ranged paralyzing bolt +10 (paralysis)
Spell-Like Abilities (CL 2nd; concentration –1)
Constant—detect magic


Str 20, Dex 16, Con —, Int 1, Wis 11, Cha 5
Base Atk +6; CMB +10; CMD 23 (31 vs. trip)
Feats Ability Focus (paralyzing bolt), Improved Initiative, Skill Focus (Perception)
Skills Climb +13, Perception +6, Stealth +10
Languages Thassilonian (can’t speak)
SQ alert, freeze


Environment any
Organization solitary, pair, or troop (3–7)
Treasure none

Special Abilities

Alert (Su) A marble sentinel can take simple orders and identify intruders, and it possesses the ability to alert its creator or another creature to which it’s keyed. When a marble sentinel detects a trespasser, it can choose to alert the creature to which it’s keyed in one of two ways. The sentinel can create a loud sound like that of a bell, chime, or gong that can be clearly heard at a range of 500 feet. Alternatively, a marble sentinel can send a mental alert to the creature to which it is keyed as long as that creature is within 1 mile of the sentinel. The mental alert wakes the keyed creature from sleep, but doesn’t affect normal concentration. A marble sentinel’s creator is the first creature to which it is keyed, and the creator can pass its link to another creature as part of a 4-hour ritual that uses materials costing 500 gp.

Immunity to Magic (Ex) A marble sentinel is immune to spells or spell-like abilities that allow spell resistance, save for spells with the force descriptor.

Paralyzing Bolt (Su) As a standard action, a marble sentinel can fire a green-hued bolt of energy as a ranged touch attack out to a maximum range of 30 feet. A creature struck by this ray must succeed at a DC 12 Fortitude save or be paralyzed for 1d6 rounds. The save DC is Charisma-based.


Marble sentinels were prized for their ability not only to detect intruders, but also to restrain them with paralyzing bolts. This ability only lasts temporarily, so the creator or other creature the sentinel is keyed to would have to receive the alert and mobilize her guards to properly subdue and restrain any trespassers.


Though the exact process of creating the base form differs depending on the materials involved, the process of animating sentinels is roughly the same. Each sentinel must be carved or worked to a fine detail before being subjected to spells and magical unguents worth 1,000 gp.

Marble Sentinel
CL 12th; Price 24,000
Requirements Craft Construct, alarm, detect magic, geas/quest, limited wish, stone shape, creator must be caster level 12th; Skill Craft (sculpture) DC 20; Cost 12,500 gp

Creatures in "Thassilonian Sentinel" Category

Bronze Sentinel3
Iron Sentinel5
Ivory Sentinel7
Marble Sentinel4

Thassilonian Sentinel

Source Pathfinder #134: It Came from Hollow Mountain pg. 90
During the height of the Thassilonian Empire, nobles and other wealthy elite favored these constructs as guardians and protectors in their homes, hidden in plain sight among the palace’s normal decorations. Able to replace the heads of statues to blend in, these creatures keep alert for intruders and extract themselves from the statues with which they are docked in order to attack. The creatures don’t need to remove themselves from their statues to use their special attacks, however, and only separate for added mobility or to have the chance to attack with their claws.

At least a dozen varieties of sentinel pervaded long-vanished Thassilon. All of these varieties were crafted from materials that wouldn’t be out of place as a medium for sculpting or casting. Though the practice of creating these constructs largely died out along with the empire at Earthfall, explorers delving into forgotten ruins sometimes encounter sentinels that still function.