NPCs composing that spawngroup :

a_ghoul (34%)

a_greater_skeleton (33%)

ice_boned_skeleton (33%)

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

befallen_55, range=181 (-732,-65,-66)

befallen_14, range=183 (-665,-184,-68)

befallen_12, range=128 (-975,-206,-69)

a_necro_acolyte (50%)
ice_boned_skeleton (50%)

befallen_11, range=141 (-988,-195,-69)

a_ghoul (33%)
a_shadowknight (33%)
a_zombie (34%)

befallen_10, range=142 (-986,-175,-68)

a_ghoul (50%)
ice_boned_skeleton (50%)

befallen_1, range=33 (-814,-206,-68)

Boondin_Babbinsbort (100%)

befallen_64, range=75 (-797,-148,-68)

befallen_65, range=174 (-706,-102,-67)

befallen_75, range=124 (-777,-102,-68)

a_ghoul (33%)
a_ghoul (33%)
a_ghoul (34%)

befallen_78, range=182 (-852,-23,-67)

befallen_79, range=78 (-837,-127,-67)

befallen_80, range=105 (-821,-103,-66)

befallen_82, range=22 (-851,-227,-66)

befallen_83, range=142 (-900,-73,-66)

befallen_84, range=131 (-902,-86,-66)

a_greater_skeleton (50%)
a_necro_acolyte (50%)

befallen_107, range=199 (-1002,-80,-66)