NPCs composing that spawngroup :

a_dark_terror (25%)

a_festering_hag (25%)

a_greater_dark_bone (25%)

mortuary_fungus (25%)

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

unrest_a_crazed_ghoul121, range=62 (660,37,35)

a_crazed_ghoul (100%)

unrest_an_undead_brewer26, range=80 (640,22,6)

an_undead_brewer (100%)

unrest_dark_boned_skeleton91, range=71 (662,28,7)

unrest_mortuary_fungus52, range=25 (678,78,-43)

a_werebat (15%)
mortuary_fungus (85%)

unrest_Khrix_Fritchoff13, range=77 (595,61,17)

Khrix_Fritchoff (100%)

unrest_222228, range=80 (700,27,35)

unrest_224012, range=98 (601,23,47)

unrest_224014, range=50 (669,49,-11)

unrest_224017, range=85 (747,81,-16)

unrest_448155, range=16 (661,83,-19)

unrest_448157, range=17 (679,106,-42)

mortuary_fungus (100%)

unrest_448347, range=55 (646,152,1)