NPCs composing that spawngroup :

a_ghoul (33%)

a_ghoul (33%)

the_thaumaturgist (34%)

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

befallen_42, range=91 (-395,95,-11)

befallen_41, range=94 (-392,92,-67)

a_ghoul (50%)
ice_boned_skeleton (50%)

befallen_85, range=15 (-483,71,-78)

a_greater_skeleton (50%)
ice_boned_skeleton (50%)

befallen_88, range=86 (-400,98,-39)

befallen_89, range=30 (-456,80,-39)

befallen_90, range=52 (-437,104,-39)

befallen_109, range=68 (-438,37,-75)

ice_boned_skeleton (50%)
ice_boned_skeleton (50%)

befallen_110, range=12 (-494,95,-76)

befallen_111, range=80 (-470,7,-72)

befallen_113, range=69 (-465,20,-39)

befallen_115, range=53 (-449,47,-38)

befallen_116, range=54 (-540,85,-39)

befallen_120, range=55 (-519,130,-39)

befallen_121, range=70 (-511,152,-39)

befallen_124, range=97 (-556,18,-38)