NPCs composing that spawngroup :

#a_shrouded_bat (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

frozenshadow_2, range=143 (776,127,177)

#maggot_infested_flesh (50%)
oozing_flesh (50%)

frozenshadow_3, range=133 (798,-35,178)

frozenshadow_5, range=99 (777,7,178)

an_ancient_mummy (50%)
an_ancient_mummy (50%)

frozenshadow_8, range=154 (810,103,177)

oozing_flesh (100%)

frozenshadow_9, range=175 (803,146,178)

#Narmak_Berreka (10%)
an_ancient_mummy (90%)

frozenshadow_87, range=129 (615,-91,220)

frozenshadow_135, range=121 (793,-19,304)

#a_shrouded_bat (100%)

frozenshadow_136, range=67 (745,35,304)

#a_shrouded_bat (100%)
#a_shrouded_bat (100%)

frozenshadow_137, range=143 (536,12,318)

a_shadow_familiar (50%)
a_shadow_familiar (50%)

frozenshadow_153, range=151 (556,-66,307)

a_shaded_torch (50%)
a_shadow_familiar (50%)

a_disabled_trap_189741, range=181 (860,6,306)

a_disabled_trap (100%)

a_shaded_torch_189745, range=179 (522,-65,307)

a_shaded_torch (100%)

a_shaded_torch_189746, range=167 (522,82,307)

a_shaded_torch (100%)

a_shaded_torch_189747, range=136 (556,82,307)

a_shaded_torch (100%)

a_shaded_torch_189748, range=120 (570,-28,307)

a_shaded_torch (100%)

a_shaded_torch_189749, range=110 (570,38,307)

a_shaded_torch (100%)

frozenshadowan_undead_musician001170669982, range=150 (543,-44,218)

an_undead_musician (100%)

frozenshadowan_undead_bridesmaid003170573957, range=154 (549,-63,218)

an_undead_bridesmaid (100%)