NPCs composing that spawngroup :

an_undead_warden (2%)

a_grimling_prison_guard (20%)

a_grimling_prison_guard (20%)

a_grimling_prison_guard (20%)

a_grimling_prison_guard (20%)

a_grimling_prison_guard (20%)

NPCs spawning around that spawngroup :
(Max range : 100)

a_grimling_elite_gua_1432300, range=80 (4,245,-8)

a_grimling_elite_guard (2%)

a_grimling_elite_gua_1432299, range=81 (-17,245,-8)

a_grimling_elite_guard (2%)

acrylia1232106, range=45 (-9,370,-12)

a_grimling_high_priest (100%)

acrylia1232059, range=31 (-10,355,-37)

a_pit_trap (2%)
Vhalek_Shah (100%)

acrylia1232034, range=57 (-45,290,-7)

acrylia1232031, range=46 (30,290,-7)

acrylia1232021, range=85 (-5,240,-3)