NPCs composing that spawngroup :

a_dread_bone (34%)

a_greater_skeleton (33%)

a_greater_skeleton (33%)

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

befallen_42, range=72 (-395,95,-11)

befallen_41, range=72 (-392,92,-67)

a_ghoul (50%)
ice_boned_skeleton (50%)

befallen_60, range=79 (-373,69,-10)

befallen_85, range=41 (-483,71,-78)

a_greater_skeleton (50%)
ice_boned_skeleton (50%)

befallen_88, range=70 (-400,98,-39)

befallen_89, range=33 (-456,80,-39)

befallen_90, range=58 (-437,104,-39)

befallen_91, range=79 (-372,29,-39)

befallen_92, range=86 (-372,7,-39)

befallen_93, range=78 (-456,-31,-38)

a_greater_skeleton (50%)
a_sturdy_skeleton (50%)

befallen_106, range=53 (-486,86,-77)

befallen_109, range=14 (-438,37,-75)

ice_boned_skeleton (50%)
ice_boned_skeleton (50%)

befallen_110, range=65 (-494,95,-76)

befallen_111, range=45 (-470,7,-72)

befallen_112, range=68 (-401,-2,-67)

befallen_113, range=31 (-465,20,-39)

befallen_116, range=98 (-540,85,-39)