NPCs composing that spawngroup :

Wraps_McGee (100%)

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

befallen_59, range=38 (-372,-105,-78)

befallen_58, range=23 (-357,-124,-82)

befallen_22, range=86 (-250,-134,-10)

befallen_7, range=55 (-299,-74,-11)

a_skeletal_excavator (50%)
a_skeletal_excavator (50%)

befallen_61, range=66 (-273,-141,-11)

befallen_66, range=78 (-277,-169,-11)

befallen_70, range=53 (-363,-161,-39)

a_necro_initiate (50%)
a_zombie (50%)

befallen_71, range=76 (-384,-175,-39)

befallen_72, range=31 (-350,-88,-80)

a_dread_bone (50%)
a_dread_bone (50%)

befallen_97, range=81 (-416,-114,-39)

a_lesser_mummy (50%)
a_sturdy_skeleton (50%)

befallen_99, range=59 (-392,-100,-38)

a_greater_skeleton (50%)
a_lesser_mummy (50%)

befallen_101, range=37 (-305,-94,-11)

a_cracked_skeleton (50%)
a_putrid_skeleton (50%)

befallen_102, range=40 (-295,-116,-10)

befallen_103, range=51 (-334,-167,-9)

befallen_114, range=99 (-400,-41,-38)