NPCs composing that spawngroup :

a_werebat (15%)

mortuary_fungus (85%)

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

unrest_a_crazed_ghoul121, range=44 (660,37,35)

a_crazed_ghoul (100%)

unrest_a_ghoul4, range=93 (642,-8,5)

unrest_an_undead_brewer26, range=67 (640,22,6)

an_undead_brewer (100%)

unrest_a_skeletal_monk9, range=94 (601,23,47)

a_skeletal_monk (100%)

unrest_dark_boned_skeleton91, range=90 (672,-12,7)

unrest_Khrix_Fritchoff13, range=84 (595,61,17)

Khrix_Fritchoff (100%)

unrest_222221, range=80 (646,152,1)

a_death_beetle (100%)

unrest_222228, range=55 (700,27,35)

unrest_224008, range=42 (703,44,22)

unrest_224009, range=85 (614,21,48)

a_carrion_ghoul (50%)
a_dry_bone_skeleton (50%)

unrest_224012, range=21 (659,87,21)

unrest_224013, range=63 (616,63,19)

unrest_224017, range=69 (747,81,-16)

unrest_224019, range=30 (669,49,-11)

unrest_224021, range=14 (677,64,-10)

unrest_448155, range=17 (661,83,-19)

unrest_448156, range=25 (663,99,-19)

unrest_448157, range=28 (679,106,-42)

mortuary_fungus (100%)

unrest_448158, range=86 (701,-5,-13)