NPCs composing that spawngroup :

decayed_prisoner (25%)

decayed_soldier (25%)

decayed_soldier (25%)

skeletal_caretaker (10%)

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

karnor_3, range=66 (102,-571,38)

karnor_4, range=76 (104,-592,38)

karnor_5, range=41 (54,-590,38)

karnor_8, range=87 (102,-611,38)

karnor_10, range=63 (56,-612,38)

karnor_14, range=28 (67,-546,40)

caller_of_Sathir (20%)
spectral_caller (80%)

karnor_21, range=51 (84,-575,19)

karnor_23, range=26 (55,-573,19)

karnor_32, range=93 (119,-503,17)

karnor_34, range=32 (18,-527,3)

karnor_36, range=55 (48,-496,3)

karnor_40, range=71 (-22,-514,3)

karnor_42, range=87 (117,-590,-4)

karnor_59, range=40 (-1,-541,19)

karnor_64, range=49 (78,-521,5)

karnor_65, range=70 (102,-521,3)

karnor_86, range=62 (12,-494,-35)

skeletal_guardian (95%)
skeletal_warlord (5%)

karnor_87, range=60 (-16,-526,-35)

karnor_88, range=57 (91,-575,-44)

karnor_89, range=56 (92,-532,-44)

karnor_91, range=89 (96,-619,-4)

karnor_92, range=79 (117,-565,-4)

karnor_93, range=86 (-43,-581,-22)

karnor_94, range=80 (-7,-618,-19)

karnor_96, range=93 (-24,-621,-18)

karnor_97, range=69 (-24,-582,-18)

karnor_119, range=76 (105,-590,20)

karnor_132, range=96 (90,-469,4)

caller_of_Sathir (20%)
spectral_caller (80%)