NPCs composing that spawngroup :

a_sepulcher_skeleton (100%)

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

charasis_44, range=88 (-271,45,4)

an_undertaker_skeleton (50%)
a_sepulcher_skeleton (50%)

charasis_52, range=158 (-267,-127,22)

hexbone_skeleton (100%)

charasis_55, range=138 (-484,-32,3)

a_pulsating_bile (100%)
a_pulsating_bile (100%)

charasis_57, range=165 (-460,-117,4)

charasis_58, range=84 (-269,25,4)

a_sepulcher_skeleton (100%)
a_sepulcher_skeleton (100%)

charasis_59, range=166 (-274,-140,23)

charasis_60, range=158 (-250,-114,22)

charasis_62, range=150 (-223,-71,22)

charasis_93, range=145 (-367,-137,4)

charasis_94, range=110 (-389,-96,4)

charasis_97, range=56 (-408,4,14)

an_undertaker_skeleton (50%)
a_pulsating_bile (50%)

charasis_98, range=131 (-284,120,5)

a_helot_spectre (100%)

charasis_99, range=24 (-333,-8,15)

charasis_103, range=190 (-273,182,4)

charasis_104, range=127 (-368,134,4)

a_sepulcher_skeleton (100%)

charasis_105, range=186 (-440,-156,5)

charasis_108, range=151 (-390,-138,4)

charasis_109, range=105 (-367,-96,5)

charasis_160, range=19 (-332,6,14)

charasis_161, range=172 (-444,153,4)

charasis_162, range=192 (-481,150,4)

charasis_163, range=176 (-475,133,4)

charasis_164, range=153 (-443,131,5)

charasis_165, range=190 (-226,152,4)

charasis_178, range=130 (-244,-66,-127)

a_sepulcher_skeleton (100%)

charasis_179, range=35 (-387,10,-139)

a_bottomless_feaster (100%)

charasis_180, range=127 (-227,-21,-122)

charasis_181, range=98 (-257,-22,-122)

a_crypt_spectre_189513, range=199 (-439,-171,5)

a_crypt_spectre_189514, range=179 (-237,147,5)