n large construct earth mindless 

Perception +8; darkvision

Skills Athletics +9

Str +4 Dex -2 Con +5 Int -5 Wis +0 Cha -5

Items warhammer

AC  18 (14 when broken)); construct armor; Fort +11, Ref +4, Will +4

HP 23; Hardness 4; Immunities bleed, death effects, disease, doomed, drained, fatigued, healing, mental, necromancy, nonlethal attacks, paralyzed, poison, sickened, unconscious

Construct Armor Like normal objects, a quarry construct has Hardness. This Hardness reduces any damage it takes by an amount equal to the Hardness. Once a quarry construct is reduced to less than half its Hit Points, or immediately upon being damaged by a critical hit, its construct armor breaks and its Armor Class is reduced to 14.

Speed 20 feet

Melee [>] warhammer +10 (shove), Damage 1d8+4 bludgeoning

Gatewalkers #1: The Seventh Arch.